•You may feel fullness, pain, or pressure in the centre of your chest that lasts for more than two or three minutes.
•Pain in your neck, arms, or shoulders, especially rapidly spreading pain. It may start out as somewhat mild, but it will grow. It can be burning, pressure, or a tightness of your muscles and it can move from your chest to your abdomen, jaw, arms, shoulders, or neck.
•Light-headedness or fainting.
•Shortness of breath.
•Sweating or cold, clammy skin.
•Anxiety or feelings of something horrible happening.
•Irregular heart rate.
Heart attacks can feel like a lot of things. It can be excruciatingly painful and it can be so minor that the person having it sleeps right through it. Many people getting EKGs are surprised to discover that they indeed had a heart attack they were unaware of. Other people mistake heart attacks for heartburn and do not seek medical attention until it is too late.
"Like a bomb exploding inside of my chest" is how a patient of mine described it, just before his operation for a bypass surgery...
It's feel like acute pain in your chest and you can't take breathe easily.