Could you tell me what are signs of angina?

Pressure: Angina is a symptom of myocardial ischemia, or reduced blood flow to the heart muscle. This is usually caused by a blockage in a coronary artery from cholesterol plaque build up. Classic anging in tightness of pressure behind the sternum, usually increased with physical activity or stress, and improved with rest. There may also be associated symptoms such as shortness of breath, sweating (cont).