What does angina feel like in the early stages?

Angina pectoris initial stage generally will be chest dull pain, fatigue, shortness of breath and other feelings, analysis is as follows:

1. chest dull pain

due to coronary artery blood supply deficiency, caused by myocardial transient ischemia, resulting in chest dull

pain.2. fatigue

due to coronary atherosclerosis after spasm, so that myocardial blood supply deficiency, affecting the operation of the whole body tissues and organs, resulting in

fatigue.3. shortness of breath

due to coronary artery excessive contraction, causing vascular occlusion, narrowing coronary artery, reducing blood supply and oxygen supply deficiency, so that patients appear shortness of breath feeling.