Three simple questions can give you a surprisingly reliable indication of whether your headaches are migraines: Do they limit your ability to function? Do they come with nausea? Does light bother you during an attack? Answering yes to two or three of these correctly identifies migraine about 81 to 87 percent of the time, according to research on the ID Migraine screener. But a self-assessment is a starting point, not a diagnosis. The full picture of migraine involves recognizable phases, specific symptom patterns, and a handful of conditions that convincingly mimic it.
The Three-Question Screener That Actually Works
The most studied self-screening tool for migraine is called ID Migraine. It was developed by testing nine candidate questions and narrowing them to the three that best separated migraine from other headache types: disability (your headaches interfere with work, school, or daily activities), nausea, and photosensitivity (light bothers you during headaches). If you answer yes to at least two of the three, the screener flags you as likely having migraine. In the original validation study, this two-of-three cutoff had a sensitivity of 81 percent and a positive predictive value of 93 percent in a primary care population.1PubMed. A self-administered screener for migraine in primary care: The ID Migraine validation study
A systematic review and meta-analysis pooling data across multiple studies found the screener’s overall sensitivity was around 84 percent and its specificity about 76 percent. The tool turns out to be better at ruling migraine out than ruling it in: a negative score drops the probability of migraine from roughly 59 percent down to 23 percent.2PubMed. Diagnostic accuracy of the ID Migraine: a systematic review and meta-analysis A more recent meta-analysis found similar numbers, with pooled sensitivity of about 87 percent and specificity around 70 percent.3PubMed Central. Usefulness of the ID-Migraine Screening Tool for Diagnosing Migraines in Patients With Headache and Facial Pain: A Systematic Review and Meta-Analysis In practical terms, if you score negative on these three questions, there is a good chance your headaches are something other than migraine. If you score positive, it is worth pursuing a proper evaluation.
What Doctors Actually Look For
A formal migraine diagnosis follows a checklist laid out by the International Classification of Headache Disorders. For migraine without aura, the most common type, the criteria require at least five attacks that meet specific characteristics. Each attack lasts between four and 72 hours when untreated. The headache itself has at least two of four features: one-sided location, a pulsating or throbbing quality, moderate to severe intensity, and getting worse with routine physical activity like walking or climbing stairs. On top of the pain, you need at least one accompanying symptom: nausea or vomiting, or both sensitivity to light and sensitivity to sound.4PubMed Central. Diagnosis and management of migraine in ten steps
Notice the “at least five attacks” requirement. A single terrible headache, even one that feels distinctly migrainous, does not meet the diagnostic threshold on its own. This is partly because other conditions can produce a one-off event that looks like migraine, and doctors need a pattern to be confident. If you have had fewer than five episodes but they otherwise fit, your doctor may diagnose “probable migraine” and monitor you over time.
Also worth noting: migraine does not have to be one-sided. The criteria say “at least two of four” pain characteristics, so a bilateral throbbing headache of moderate intensity that worsens with activity still qualifies. Many people dismiss their headaches as “just bad headaches” because the pain is not limited to one side of the head.
Migraine With Aura
About a quarter to a third of people with migraine experience aura, a set of temporary neurological symptoms that usually precede the headache. Visual disturbances dominate: in one large study, nearly 95 percent of participants with aura reported visual symptoms. Sensory aura, typically tingling or numbness that spreads across one side of the body, occurred in about 36 percent, and speech or language difficulties in roughly 14 percent.5PubMed Central. Clinical features of migraine with aura: a REFORM study
Aura symptoms tend to build gradually and spread over minutes, which helps distinguish them from the sudden onset of a stroke. Most participants in that study described their aura as “positive” symptoms (seeing something extra, like shimmering lines or spots) or as gradually spreading, and the vast majority reported that aura preceded the headache rather than appearing during or after it. About a third experienced more than one type of aura during a single attack. If you have ever seen zigzag patterns, tunnel vision, or spreading blind spots in the 5 to 60 minutes before a headache hits, that is a classic aura presentation and a strong clue toward migraine.
The Full Arc of an Attack
Migraine is not just a headache. It unfolds across up to four phases: prodrome, aura, headache, and postdrome.6PubMed Central. The prodrome of migraine: mechanistic insights and emerging therapeutic strategies Many people only recognize the headache phase and miss the rest, which means they miss early warning signs and underestimate how long the attack actually lasts.
The prodrome can begin hours to a day before the headache. In a large screening study, the most frequently reported prodromal symptoms were sensitivity to light (57 percent), fatigue (50 percent), neck pain (42 percent), sensitivity to sound (34 percent), difficulty thinking or concentrating (30 percent), and dizziness (28 percent). About 82 percent of these prodrome events were followed by headache within one to six hours.7PubMed Central. Characterizing Prodrome (Premonitory Phase) in Migraine: Results From the PRODROME Trial Screening Period If you consistently feel unusually tired, have neck stiffness, or become sensitive to light before a headache materializes, that pattern itself is a strong indicator of migraine.
After the pain fades, most people experience a postdrome, sometimes called a “migraine hangover.” The most common postdrome symptoms are tiredness, residual head pain, cognitive difficulties, a hungover feeling, gastrointestinal symptoms, and mood changes.8PubMed. The postdrome of the acute migraine attack The postdrome typically lasts a day or less, but some people feel off for longer. An earlier study found that patients experienced an average of six lingering symptoms including physical and mental tiredness, subdued mood, impaired concentration, and neck stiffness.9PubMed. Migraine postdromes: symptoms after attacks In controlled research settings, virtually all participants had a postdrome, even though in routine clinical settings about 79 percent reported one, likely because some people do not recognize the residual symptoms as part of the same attack.10PubMed Central. The migraine postdrome: Spontaneous and triggered phenotypes
The Sinus Headache Problem
One of the most common reasons people do not realize they have migraine is that their headaches get mislabeled, often by themselves and sometimes by their doctors. The biggest culprit is “sinus headache.” Migraine frequently causes facial pressure, nasal congestion, and even watery eyes, which closely mimic a sinus infection. In one study of patients who had been given a sinusitis diagnosis, over 80 percent were found on careful evaluation to actually have migraine.11PubMed Central. Migraine misdiagnosis as a sinusitis, a delay that can last for many years A separate study examining patients who arrived with a primary complaint of “sinus headache” found that 68 percent met criteria for migraine, 27 percent had tension-type headache, and only 5 percent actually had chronic sinusitis.12PubMed. Causes of headache in patients with a primary diagnosis of sinus headache
If you have been taking over-the-counter sinus medications for recurring headaches and they are not really helping, or if your “sinus headaches” come with nausea, sensitivity to light, or throbbing pain, consider that migraine is the far more likely explanation. A genuine sinus infection typically involves colored nasal discharge, fever, and headaches that do not throb or worsen with movement.
Migraine can also produce autonomic symptoms like tearing, eyelid swelling, and facial flushing, which sometimes leads to confusion with cluster headache. Research has shown that these autonomic features in migraine tend to be bilateral and milder, whereas in cluster headache they are almost always on one side and intense.13Journal of Neurology, Neurosurgery & Psychiatry. Cranial autonomic symptoms in migraine: characteristics and comparison with cluster headache
Triggers and What They Actually Mean
If you are trying to figure out whether your headaches are migraines, keeping track of what precedes them is useful but comes with a caveat. A systematic review of 25 studies found that stress was the single most commonly reported trigger, cited by about 58 percent of people with migraine. Other frequently reported triggers included hormonal changes, sleep disturbances, weather, skipped meals, alcohol, and sensory stimuli like bright light or strong smells.14PubMed. What turns on a migraine? A systematic review of migraine precipitating factors
The important nuance is that triggers probably do not cause attacks in a straightforward way. Evidence suggests they lower a threshold rather than flip a switch, meaning the same trigger might set off an attack on one day and be completely harmless on another, depending on your overall state. Factors like menstruation, sleep problems, fatigue, and alcohol have at least reasonable evidence behind them. On the other hand, scientific evidence that specific foods or food additives are reliable migraine triggers is surprisingly weak.15PubMed. Triggers of migraine and tension-type headache Many people also confuse prodromal food cravings with food triggers: you crave chocolate because an attack is already beginning, then blame the chocolate for the headache that follows.
Why Women Get Migraines More Often
Migraine is roughly three times more common in women than in men, and the gap opens during puberty and narrows again after menopause, pointing clearly toward hormonal involvement.16Nature Reviews Neurology. Hormonal influences in migraine — interactions of oestrogen, oxytocin and CGRP The prevailing explanation is the estrogen withdrawal hypothesis: attacks are more likely when estrogen levels drop, such as just before or during menstruation. Research suggests that this is not just about low estrogen but about the fall from a higher level. When estrogen drops below a certain threshold after a period of sustained higher levels, it can trigger an attack in susceptible women.17PubMed Central. The complex relationship between estrogen and migraines: a scoping review
If your headaches cluster around your period, worsen in the days before it starts, or shifted noticeably when you started or stopped hormonal contraception, that pattern is a strong self-assessment clue. Menstrual migraine can occur with or without aura, and some women experience migraine exclusively around menstruation while others have attacks at other times too but find them worse premenstrually.
Red Flags That Mean Something Else
Self-assessment has limits. Some headache patterns require urgent medical evaluation rather than a screening quiz. A systematic framework called SNNOOP10 lists the warning signs that suggest a secondary headache, meaning a headache caused by an underlying condition rather than migraine itself. The red flags include:
- Sudden onset: a headache that reaches maximum intensity within seconds, sometimes called a “thunderclap headache”
- Neurological deficit: weakness, numbness, confusion, or decreased consciousness accompanying the headache
- Fever: headache with systemic symptoms like fever or unexplained weight loss
- New after 65: a new headache pattern beginning for the first time in someone over 65
- Pattern change: a headache that is fundamentally different from your usual pattern
- Positional: headache that dramatically worsens or improves with changes in position
- After trauma: a new headache that began after a head injury
Any of these warrant a visit to a doctor promptly, not a quiz.18PubMed Central. Red and orange flags for secondary headaches in clinical practice: SNNOOP10 list Migraine is a diagnosis of pattern. When the pattern breaks, the diagnosis needs re-examination.
How Accurate Are Online Migraine Quizzes
Beyond the ID Migraine screener, a growing number of computerized diagnostic tools and AI-powered questionnaires attempt to screen for migraine through longer, more detailed question sets. A systematic review of these tools found a median diagnostic accuracy of about 89 percent, with median sensitivity around 87 percent and specificity around 90 percent.19PubMed Central. Computerized migraine diagnostic tools: a systematic review One AI-based online engine, tested across multiple headache centers, achieved 90 percent sensitivity and 96 percent specificity when compared against specialist diagnosis.20PubMed Central. Diagnostic accuracy of an artificial intelligence online engine in migraine: A multi-center study
These numbers are encouraging, but context matters. Performance varies depending on the population taking the quiz. In a headache clinic where about 60 percent of patients have migraine, the positive predictive value was 97 percent. But in the general population, where migraine prevalence is closer to 10 percent, that same tool’s positive predictive value dropped to about 70 percent. In plain terms, if you are already visiting a headache center, a positive result is very likely correct. If you are a random person taking an online quiz, roughly three in ten positive results may be false alarms. The flip side is reassuring: the negative predictive value in the general population was around 99 percent, meaning a negative result on a well-designed tool is highly reliable.
The Medication Overuse Trap
If you are taking pain relievers for headaches more than two or three days a week, you may be making the problem worse. Medication overuse headache is a well-recognized condition where frequent use of painkillers for a pre-existing headache disorder paradoxically increases headache frequency. It occurs with over-the-counter medications, triptans, and opioids alike, and is associated with higher rates of anxiety and depression.21PubMed Central. Medication overuse headache: a review of current evidence and management strategies This is relevant to self-assessment because medication overuse headache can transform an episodic migraine pattern into a near-daily headache, making the underlying migraine harder to recognize. If your headaches have been gradually increasing in frequency while you have been taking more and more over-the-counter pain relief, that escalating cycle is itself a diagnostic clue.
What to Track Before You See a Doctor
If your self-assessment points toward migraine, the single most useful thing you can do before a medical appointment is keep a headache diary for a few weeks. Record when headaches start and end, their intensity, associated symptoms like nausea or light sensitivity, what you were doing before the attack, where you are in your menstrual cycle if applicable, what medications you took, and how well they worked. Research on structured migraine diaries found that 72 percent of patients said the diary improved communication with their doctor, and 91 percent of physicians agreed it helped them better understand differences in pain and disability across patients.22PubMed Central. Use of a structured migraine diary improves patient and physician communication about migraine disability and treatment outcomes
A diary also helps you notice patterns you might otherwise miss, like prodromal symptoms that appear hours before the pain, or the relationship between sleep and attacks. It transforms a vague complaint of “I get bad headaches” into a detailed clinical picture that a doctor can act on. There is no blood test or brain scan that diagnoses migraine; the diagnosis rests almost entirely on the history you provide. The better your history, the faster and more accurate the diagnosis.
The Workplace Cost People Do Not Talk About
One reason migraine goes underdiagnosed is that many people assume their headaches are not severe enough to “count.” They push through workdays in pain rather than seeking help. Research quantifying this found that the productivity loss from working through a migraine, known as presenteeism, was roughly 20 times greater than the productivity lost from staying home. In one study of employees, productivity dropped by about 39 percent on days when people worked through migraine, compared to only 2 percent of total work time missed to staying home.23PubMed Central. Impact of migraine on workplace productivity and monetary loss: a study of employees in banking sector in Malaysia Separate research calculated that the combined economic loss from absenteeism and presenteeism can run into thousands of dollars per person per year.24PubMed Central. Disability, quality of life, productivity impairment and employer costs of migraine in the workplace
If you regularly find yourself unable to concentrate, working at half speed, or avoiding tasks because of headache-related symptoms, that functional impairment is itself a hallmark of migraine and one of the three questions on the ID Migraine screener. “Does it limit what you can do?” is not just a screening question; it is a measure of how much the condition is already costing you, whether or not you have a name for it yet.
How CGRP Changed the Treatment Landscape
Even if you are reading this article purely for self-assessment and are not yet thinking about treatment, it is worth knowing that the field has changed dramatically in the past few years. A signaling molecule called calcitonin gene-related peptide (CGRP) was identified as a critical player in migraine attacks.25PubMed Central. Calcitonin gene-related peptide (CGRP): role in migraine pathophysiology and therapeutic targeting During a migraine, activation of nerve fibers around blood vessels in the brain leads to the release of CGRP, which in turn triggers inflammation that sustains and worsens the pain over the course of the attack.26PubMed Central. Calcitonin gene-related peptide (CGRP) and migraine
This discovery led to an entirely new class of preventive medications, monoclonal antibodies and small-molecule drugs that block CGRP or its receptor. These are the first treatments designed specifically for migraine prevention rather than repurposed from other conditions like blood pressure drugs or antidepressants. For people who have been quietly enduring frequent attacks, or who assumed nothing effective existed beyond over-the-counter painkillers, the treatment options available today are substantially better than what existed even a decade ago. Getting an accurate diagnosis is the first step toward accessing them.