<unk>  is chest pain or discomfort that occurs when your heart muscle does not get enough blood. It may feel like pressure or a squeezing pain in your chest. You may also feel pain in your shoulders, arms, neck, jaw or back. Sometimes it may feel like indigestion. 
Not as a disease,<unk>  is one of symptoms of coronary artery disease (CAD), the most common type of heart disease. CAD happens when a fatty substance called plaque builds up in the arteries that supply blood to the heart, reducing blood flow. Thus, people cannot get enough oxygen-rich blood and<unk>  occurs.
Angina pectoris
Mixed angina pectoris
Acute coronary syndromes
Pericarditis
Abdominal angina
Chest pain  
Chest pain
Angioedema