What Do Doctors Want You to Understand?

The reason this question gets asked so often is that panic attacks are common and the physical symptoms feel life-threatening. About 4.7% of U.S. adults have a panic disorder at some point in their lives, and past-year prevalence is higher in women (3.8%) than men (1.6%).⁸ Chest pain is the second most common reason people go to an emergency department in the United States,² and a large share of those visits turn out to be non-cardiac — often anxiety, muscle strain, or reflux.² But the reverse also happens. Heart attacks get missed when the symptoms are attributed to anxiety.⁵ ⁷

Here is the important part: doctors do not tell these two apart from symptoms alone. They use an electrocardiogram (a quick recording of the heart's electrical activity) and a blood test called troponin, which rises when heart muscle is injured.¹ ² Both tests take minutes to run, and both are far more reliable than any bedside assessment. The reason for the high blood pressure explainer's emphasis on risk factors is the same reason emergency doctors ask about them here: your baseline risk changes how the story reads.

So the honest answer to "how do I tell the difference" is that certain features lean one way or the other, and knowing them helps you gauge urgency. But if the picture is at all unclear during an actual event, the safe call is not to sit and analyze it — it is to get evaluated.⁶ ⁹

How Are They Actually Different?

Rather than a long symptom checklist, it helps to think about five features doctors weigh together.

1. How does it start? Panic attacks often begin in response to a stressful thought, a specific place, or seemingly nothing at all — and they hit their full intensity within minutes.³ Heart attacks are more likely to begin during or shortly after physical exertion, emotional stress, or heavy exertion in cold weather, and the discomfort often builds gradually and then persists.² ⁶

2. How long does it last? This is one of the more useful distinctions. Panic attacks peak fast and ease off — typically within 20 to 30 minutes.³ Heart attack pain tends to last longer than a few minutes, go away and come back, or steadily worsen. Discomfort that keeps returning with any activity — walking to the kitchen, climbing a few stairs — is a red flag for a cardiac cause.⁶

3. What does the chest sensation feel like? Panic attack chest pain is often described as sharp, stabbing, or localized to one spot, sometimes with a fluttery or "skipped beat" feeling on top of it.³ ⁵ Heart attack discomfort is more often a heavy pressure, squeezing, or fullness in the center of the chest — sometimes described as an elephant on the chest.² ⁶ It may spread to the jaw, neck, back, shoulder, or arm.² ⁶ Neither pattern is guaranteed, though — this is a lean, not a rule.

4. Are there other symptoms? Panic attacks bring a specific combination: intense fear, a sense of unreality, tingling in the hands or around the mouth, sensations of choking, and — a signature feature — hyperventilation.³ ⁵ Heart attack symptoms are more likely to include cold sweats, nausea, and shortness of breath that is disproportionate to what you were doing.² ⁶

5. What is your baseline risk? This is what turns a coin flip into a probability. Age 45 or older for men and 55 or older for women, high blood pressure, diabetes, smoking, high cholesterol, and family history of early heart disease all raise the pre-test probability that new chest pain is cardiac.² A first-ever "panic attack" in a 60-year-old with hypertension is treated as heart disease until an electrocardiogram and troponin say otherwise, no matter how the person feels about the cause.⁵ ⁷

WHAT YOUR DOCTOR IS LOOKING FOR

In the emergency department, the workup is standardized and fast. A history and physical exam happen alongside an electrocardiogram — the goal is to get the tracing within 10 minutes of arrival.¹ ² A blood draw sends a troponin level to the lab; a rising troponin means heart muscle has been damaged.¹ ² A normal ECG and a normal troponin, in a low-risk person, effectively rules out a heart attack right then. Anxiety is not a diagnosis of exclusion made from the door — it is what remains after cardiac causes have been ruled out for the presenting event. This is why doctors would rather see 100 panic attacks in the ER than miss one heart attack, and why "I felt silly coming in for what turned out to be anxiety" is a good outcome, not a wasted trip.⁶ ⁹

What Should You Do If You're Not Sure?

The default rule is straightforward: if you're not sure, call 911. Do not drive yourself. Do not have a family member drive you unless there is no other option. An ambulance means the ECG and treatment start before you reach the hospital.⁶ Aspirin (if you can safely take it) is often recommended by the dispatcher during transport for suspected heart attack.⁶

The rule is stronger — not weaker — in three situations:

• If this is the first time you have ever felt this way. First episodes deserve a workup, especially in adults over 40.²

• If you are a woman. Heart attack symptoms in women more often include shortness of breath, nausea or vomiting, extreme fatigue, and pain in the jaw, back, neck, or upper stomach, and women are more likely to attribute those symptoms to flu, reflux, or anxiety and delay care.⁴ ⁵ ⁷ Chest pain is still the most common heart attack symptom in women; the difference is that additional symptoms are more common alongside it.⁴ ⁵

• If you have known cardiac risk factors. High blood pressure, diabetes, prior heart disease, family history of early heart disease, or a personal history of smoking all shift the odds toward a cardiac cause and lower the threshold for evaluation.² ⁷ ⁹

A person with a well-established panic disorder who is having an attack that matches their prior pattern exactly is a different situation from a first-ever event or one that feels different from usual. Even then, if anything about this episode is worse, longer, or unusual for you, the safer call is to be evaluated.