What are the signs of a heart attack?

1. The most common is - Chest pain. It is typically felt as heaviness or tightness in the chest as if somebody is sitting on your chest or there is a tight band around your chest.

2. Pain in the jaw, left shoulder, left arm or in the upper abdomen.

3. Breathlessness .

4. Sudden Profuse sweating.

5. Other less classical complaints like Restlessness, nausea and vomiting.