Migraine symptoms go well beyond a bad headache. A migraine attack unfolds in up to four distinct phases, each with its own set of symptoms that can stretch the total experience from hours to several days. The hallmark is throbbing, pulsing pain, usually on one side of the head, lasting anywhere from 4 to 72 hours. But many people are surprised to learn that migraine symptoms can start a full day or two before the pain hits and linger long after it stops.
The Four Phases of a Migraine Attack
Not everyone experiences all four phases, and attacks can vary from one episode to the next. But understanding the full progression helps you recognize what’s happening earlier and respond sooner.
The four phases are: prodrome (warning signs), aura (sensory disturbances), headache (the main pain phase), and postdrome (the “migraine hangover”). Some people skip the aura entirely. Others never notice the prodrome. But the pattern, once you learn to spot it, tends to repeat.
Prodrome: Early Warning Signs
The prodrome phase can begin hours or even days before the headache starts. About 80% of prodrome episodes lead to a headache within one to six hours. The symptoms are subtle enough that many people don’t connect them to migraine at first.
In a large clinical study tracking over 4,800 prodrome episodes, the most common early symptoms were sensitivity to light (57%), fatigue (50%), neck pain (42%), sensitivity to sound (34%), dizziness (28%), and irritability (26%). Nausea, difficulty concentrating, muscle pain, and blurred vision also showed up frequently.
A few prodrome symptoms are distinctive enough to serve as reliable early signals: repeated yawning, cravings for specific foods, and frequent urination. Mood shifts are common too, ranging from irritability to a low, depressive feeling. Neck and shoulder stiffness is another telltale sign. If you start recognizing these patterns before your attacks, you gain a window to act early.
Aura: Sensory Disturbances
Roughly one in four people with migraine experience aura, which typically develops gradually over at least five minutes and lasts up to an hour. In about 20% of cases, it can stretch beyond 60 minutes.
Visual aura is the most common type. You might see flashing or shimmering lights, zigzag patterns, blind spots, or sparks in your field of vision, usually in both eyes. Some people describe it as looking through heat waves or seeing a growing patch of missing vision.
Sensory aura can cause tingling or numbness that often starts in the hand and moves up the arm, sometimes reaching the face. Weakness in a limb, though less common, also falls under this category. A third type, called dysphasic aura, affects speech and language. Words may come out slurred, jumbled, or hard to find. This type is rarer but can be alarming if you don’t know what’s happening.
The Headache Phase
The headache itself typically lasts several hours to three days. The pain is usually throbbing or pulsing and tends to concentrate on one side of the head, though it can affect both sides. Intensity ranges from moderate to severe, and routine physical activity like walking or climbing stairs often makes it worse. Many people find themselves retreating to a dark, quiet room because even small movements amplify the pain.
The headache almost never comes alone. In a population study of 170 people with migraine, sensitivity to sound affected 81%, sensitivity to light affected 74%, nausea occurred in 71%, and vomiting in 48%. These accompanying symptoms are so central to migraine that the diagnostic criteria require at least one of them: either nausea and vomiting, or both light and sound sensitivity.
Beyond those core symptoms, the headache phase can bring anxiety, insomnia, and an inability to concentrate. Sensitivity to smell is another common complaint, with strong odors like perfume or cooking smells becoming intolerable.
Postdrome: The Migraine Hangover
After the pain fades, the attack isn’t necessarily over. The postdrome phase, often called the migraine hangover, can last anywhere from a few hours to two full days. You might feel exhausted, foggy, or sore, with a stiff neck and lingering sensitivity to light and sound.
Other postdrome symptoms include dizziness, difficulty concentrating, nausea, and body aches. Mood changes are common during this phase too, and they swing in both directions. Some people feel unusually euphoric once the pain lifts, while others slip into a depressed or flat mood. The brain fog and fatigue can be significant enough to affect work and daily function for up to 48 hours after the headache resolves.
Episodic vs. Chronic Migraine
Most people with migraine have episodic attacks, meaning they come and go with stretches of normal days in between. Chronic migraine is defined as headache occurring on 15 or more days per month for more than three months, with at least eight of those days having migraine features. The symptoms themselves are the same, but when attacks overlap this frequently, the phases can blur together, and the cumulative impact on daily life is much greater.
Migraine is most common between ages 35 and 45, typically begins around puberty, and affects women more often than men, likely due to hormonal influences.
Symptoms That Signal Something Else
Most headaches with migraine features are exactly that: migraine. But certain patterns suggest an underlying condition that needs prompt medical evaluation.
- Sudden, explosive onset. A headache that reaches maximum intensity within seconds, sometimes called a thunderclap headache, can indicate a vascular emergency like a brain aneurysm.
- New neurological symptoms. Weakness in one arm or leg, new numbness, or visual changes that don’t fit your typical aura pattern warrant attention.
- Fever or systemic illness. Headache with fever, night sweats, or weight loss suggests an infection or inflammatory condition.
- New headaches after age 50. A first-time headache pattern starting later in life is more likely to have a secondary cause.
- Progressive worsening. Headaches that are clearly becoming more severe or more frequent over weeks, rather than following your usual pattern, deserve investigation.
- Positional changes. Pain that shifts dramatically when you stand up, lie down, cough, or strain could point to a pressure-related problem in the brain.
- New headache during or after pregnancy. This can indicate vascular or hormonal complications that need evaluation.
The key distinction is change. If your headaches follow a consistent pattern you’ve had for years, that pattern is likely migraine. If something is new, sudden, or escalating, that’s when further workup matters.