DefinitionAngina is a type of chest discomfort due to poor blood flow through the blood vessels (coronary vessels) of the heart muscle (myocardium).Related topics:Chest painStable anginaUnstable anginaVariant anginaSymptomsSome patients (especially women, the elderly, and people with Diabetes) have unusual symptoms, such as:FatigueJaw, arm, or Back painShortness of breathWeakness