The most common symptom of a heart attack is chest pain or discomfort in the center or left side of the chest. It typically feels like pressure, squeezing, or fullness, and it lasts more than a few minutes or goes away and comes back. But chest pain is only one piece of the picture, and some people experience a heart attack with minimal or no chest pain at all.
The Classic Symptoms
Most heart attacks involve some combination of the following:
- Chest discomfort: Pressure, squeezing, or a sense of fullness in the center or left chest. It can come and go or persist.
- Pain radiating to the arms, jaw, neck, or back: This often affects one or both arms or shoulders and can spread to the upper back.
- Shortness of breath: This sometimes appears before chest pain starts, not just alongside it.
- Cold sweat, lightheadedness, or feeling faint
- Nausea or vomiting
- Unusual, unexplained fatigue
Not everyone gets the dramatic, clutch-your-chest moment you see in movies. The discomfort can be mild enough that people mistake it for indigestion or a pulled muscle. That hesitation is dangerous: heart muscle cells begin dying within 20 to 30 minutes of losing blood flow. Every minute of delay means more permanent damage.
How Symptoms Differ in Women
Women are more likely than men to experience symptoms that don’t obviously point to the heart. Nausea, brief neck or back pain, unusual fatigue, heartburn, and dizziness are all more common in women during a heart attack. Women do still experience chest pain, but it may be less intense or overshadowed by these other sensations, which can feel unrelated to a cardiac event.
Shortness of breath, pain in one or both arms, jaw or upper back pain, and sweating also appear frequently in women. Because these symptoms overlap with everyday problems like the flu or acid reflux, women tend to delay seeking help longer than men. Recognizing that a heart attack doesn’t always look like crushing chest pain is especially important for women.
Silent Heart Attacks
Roughly one in five to two in five heart attacks are “silent,” meaning the person doesn’t recognize what’s happening. A silent heart attack still damages the heart, but the symptoms are so mild they get dismissed. You might feel like you’re coming down with the flu, have a sore muscle in your chest or upper back, feel unusually tired for no reason, or deal with indigestion that won’t go away.
People with diabetes face a higher risk of silent heart attacks. Diabetes can damage the nerves that carry pain signals from the heart, a condition called autonomic neuropathy. When those nerves are dulled, the chest pain that would normally set off alarm bells may barely register. If you have diabetes, pay close attention to shortness of breath with minimal effort, unexplained nausea, sweating without exertion, or indigestion that doesn’t pass quickly. These may be the only clues your body gives you.
Warning Signs Days or Weeks Before
Some symptoms can appear up to a month before a heart attack. These prodromal signs are easy to overlook because they’re vague and gradual, but recognizing them can save your life.
Extreme fatigue or unexplained weakness lasting days or weeks is one of the most commonly reported early warnings. Some people, especially women, describe a sudden increase in anxiety or a feeling of impending doom, which may be a psychological response to physical changes already happening in the body. Sleep disturbances like insomnia or waking frequently during the night can also signal that the heart is under increasing stress. None of these symptoms on their own confirm a heart attack is coming, but a new, unexplained cluster of them deserves medical attention.
What to Do if You Suspect a Heart Attack
Call emergency services immediately. Do not drive yourself to the hospital. While waiting for help, chewing one regular aspirin (162 to 324 milligrams) can improve survival by helping to restore blood flow. Chewing works faster than swallowing it whole. Skip the aspirin if you’re allergic to it or have been told by a doctor not to take it.
The instinct to wait and see if symptoms pass is the biggest risk factor you can actually control in the moment. People often talk themselves out of calling for help because the pain isn’t severe enough, or because they feel embarrassed about a false alarm. Emergency departments expect and welcome false alarms. The alternative, waiting while heart muscle dies, leads to permanent damage that no treatment can fully reverse.