Three main symptoms of a heart attack: 1. Pressure or pain in the centre of the chest, lasting more than a few minutes or going away and coming back 2. Pain spreading to the shoulders, neck or arms 3. Chest discomfort combined with light-headedness, fainting, sweating, nausea or shortness of breath Other common warning signs of heart attack include unusual chest, stomach or abdominal pain, nausea or dizziness, shortness of breath or difficulty breathing, unexplained anxiety, weakness or fatigue, palpitations, cold sweat or paleness. Please see the web pages for more details on Myocardial infarction and Cardiopulmonary resuscitation.