Heart attack symptoms: Three warning signs your chest pain could be a heart attack

A myocardial infarction (MI) is another term used to describe a heart attack. Sometimes, people could dismiss chest pain as insignificant, but here are three warning signs it's serious.

The British Heart Foundation (BHF) noted there are three circumstances when it's highly recommended to call 999.

Firstly, if your chest pain is sudden, it warrants a call to 999 where you can speak with an operator.

Secondly, if the chest pain spreads to other body parts, namely the arms, back neck or jaw, then call the emergency services.

Thirdly, if the chest pain feels heavy or tight, then it's time to pick up the phone.

Don't worry if you're not 100 percent certain whether your symptoms are a heart attack – chest pain requires medical attention.

Should the operator send an ambulance your way, sit down and rest to prevent further damage to the heart muscle.

If there happens to be an aspirin within arm's reach, take one, as this thins the blood.

Angina is pain felt in the chest often caused by coronary heart disease.

Should you suffer from an angina attack, the first thing you need to do is sit down and rest.

People diagnosed with this condition should be prescribed a glyceryl trinitrate (GTN) spray.

The next step is to take the GTN spray, waiting a few minutes afterward to see if the pain subsides.

It's fine to take another dose of the GTN spray should chest pain persist.

However, if the pain continues after the second dosage, then it's time to call 999 to explain your situation.

How indigestion feels

Indigestion (i.e. heartburn) is a burning sensation in the chest that usually appears after eating – often accompanied by a sour taste in your mouth.

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