These are 12 silent symptoms of a heart attack, according to cardiologists

It’s possible that when you think of heart attack symptoms, you imagine an excruciating, chest-clenching sensation. However, health authorities suggest that in a remarkable number of cases, this tell-tale pain may not be what an individual actually experiences.

In fact, the Australia’s Heart Research Institute estimates that of the 57,000 heart attacks that occur in Australia each year, 15 per cent of these are ‘silent’ heart attacks. A silent heart attack is accompanied by relatively mild symptoms or none at all. The damage is done but an individual is not aware of it.

Obviously, this makes it essential to identify possible silent heart attack symptoms as soon as possible. That’s because the quicker you get treatment, the more likely you are to survive without permanent damage to your heart muscle.

To help you recognise the silent signs of a heart attack, we spoke with cardiologists and other heart health experts who share the subtle symptoms you shouldn’t ignore.

For those days when you just feel ‘off,’ pay attention to what else your body might be trying to tell you. “Heart attack patients have told me they have a feeling of doom – like something’s just not right,” says cardiologist, Dr Stacey E. Rosen. “Listen to that little voice,” Dr. Rosen suggests. “If something feels off, it’s always better to be overly cautious and call a doctor.”

In addition, Dr Rosen reports that some of her patients have reported feeling “less mentally sharp” right before a heart attack.

Look out for these sneaky female heart attack symptoms women might be ignoring.

Heart attack chest pain is often classically described as sharp, stabbing, or even a dull ache. However, sometimes a heart attack may feel more like pressure and heaviness on your chest, or like you’re being squeezed tightly, says cardiologist, Dr Jim Liu.

Here are some chest pains you might mistake for a heart attack.

Dr Rosen observes that fatigue is one of the most common signs of a heart attack she sees, especially in female heart attack patients. “In my 25 years of practice, people on the verge of a heart attack report feeling tired and not able to do their usual activities,” says Dr Rosen.

During a heart attack, blood flow to the heart is reduced. This puts extra stress on the muscle, which is a reason this feeling of exhaustion can occur.

If you’re feeling fatigued, it’s smart to talk to your doctor about why. They will decide if an electrocardiogram (EKG), which checks heart activity – or another heart test – is necessary.

Noticeable soreness in the back, chest, or either arm – not only the left – is often a sign of a silent heart attack. Because the pain is often not accompanied by the chest heaviness that’s typically associated with a heart attack, people often tend to ignore it, Dr Rosen explains.

The pain may feel like a pulled or sore muscle or ache, as if you slept on it wrong. It may also come and go or remain constant. To be safe, if the pain is something new and it isn’t going away, you should talk to your doctor about it, even if it’s a body part that isn’t usually associated with the heart, she says.

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A commonly overlooked symptom of a heart attack is pain – again, around the chest, arms, shoulders or back – that only comes on during exercise, says Dr Liu.

If you have a partial blockage in your coronary arteries, that can limit blood flow to your heart, causing a feeling of weakness and pain, Dr Liu says. The pain may stop when you stop exercising, as the heart doesn’t need as much blood flow, or it may continue even during rest. Both can be concerning signs of heart disease – but, Dr Liu suggests, the former may suggest a heart attack has already occurred; while the latter may mean one is imminent.

If a flight of stairs is usually no problem but suddenly you find yourself gasping for air at the top, it could signal a heart attack. “Women especially tell me they noticed feeling fatigued or breathless while walking up steps or carrying groceries when they normally wouldn’t,” says Dr Rosen.

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If you wake up in the middle of the night gasping for air or feel short of breath right after waking up, that’s also a sign that something could be wrong, says cardiologist, Dr Annapoorna Kini.

Blocked blood flow to the heart could affect your breathing because the heart plays a key role in transporting oxygen to the rest of your body and removing carbon dioxide from tissues.

If you have an occasional heartburn flare-up after a heavy lunch, it may be nothing to worry about. But if it’s out of the ordinary – or if heartburn has never bothered you before – Dr Liu suggests you should call your doctor.

Angina, a heartburn-like chest pain, is caused by lack of blood flow to the heart that can signal a heart attack.

Don’t miss these surprising heartburn causes you need to take seriously.

Heart attack symptoms can sometimes mimic stomach problems like nausea, vomiting, or overall gastrointestinal upset – especially in women, says Dr Rosen. “If you don’t feel well, always call your doctor. It could be that taco you had at 10pm but it could also be a heart attack,” she says.