Severe chest pain (like squeezing, or a heaviness, or pressing) at the central or left part of the chest, lasting usually for at least 20 min. The pain may also radiate to the left upper arm, neck or jaw.
Shortness of breath. This may be your only symptom, or it may occur before or along with chest pain or discomfort. It can occur when you are resting or doing a little bit of physical activity.
Profuse sweating and a feeling of impending doom.
1. First thing you should do when a heart attack occurs, stop whatever you’re doing, proceed to a safe place to rest and call for medical help. For example, if you’re driving, first pull to the side of the road and call for aid.
2. If you have aspirin at home, and you know that you are not allergic to it, then you could consider taking it while waiting for the emergency medical services to arrive.
Since many people are alone when they suffer a heart attack without help, the person whose heart is beating improperly and who begins to feel faint, has only about 10 seconds left before losing consciousness.
3. Vigorous Coughing:
Victims can help themselves by coughing repeatedly and very vigorously. A deep breath should be taken before each cough, and the cough must be deep and prolonged, as when producing sputum from deep inside the chest. A breath and a cough must be repeated about every two seconds without let-up until help arrives, or until the heart is felt to be beating normally again. Deep breaths get oxygen into the lungs and coughing movements squeeze the heart and keep the blood circulating. The squeezing pressure on the heart also helps it regain normal rhythm. In this way, heart attack victims can get to a hospital.