How to identify Heart Attack ?
Symptoms

1. Chest pain not relieved by rest or sorbitrate: The victim of a heart attack often complaints of an excruciating pain in the left part of the chest , radiating to the left arm. The pain is not relieved by taking rest or sorbitrate (or other nitrates) below the tongue. 

2. Sweating : This pain often is accompanied by a profuse sweating. Even in a cold atmosphere the patient perspires.

3. Feeling of intense weakness: In many patients there is a feeling of intense emptyness or giddiness following a heart attack. Some of the patients often feel like having a low blood pressure and low blood sugar.

4. Suffocation: Choking, sense of constriction in the chest. There may be feeling of breathlessness in some patients. Those who already have angina, would find an acute aggravation of the symptoms.

5. Burning sensation in the chest: This feeling occurs specially in people having heart attack for the first time. This uncomfortable feeling, accompanied with a gastric or acidity problem, many times confuse heart attack victims. They consider this as a gas problem and take some antacid tablets, which also relieve the feeling to some extent.