Myocardial infarction is the term for a heart attack. It occurs when blood flow to a part of the heart is blocked and tissue death occurs, causing heart damage. Usually, it is due to a blockage of the coronary arteries which supply the heart with blood. The following are heart attack symptoms. Chest pain is a common one--it may radiate to the arms, neck, shoulder, jaw, back or stomach area. It may feel like the chest is tight. It may mimic a case of indigestion, or feel like a heavy pressure to the chest area. Sometimes, people may experience dizzyness, fainting or coughing. Consider these symptoms a medical emergency and seek medical attention immediately.