My heart ached for a day or so. It hurts to bend over and sneeze, and it hurts to stretch your left arm! Please help me explain! thank you

Angina pectoris refers to a group of syndromes with precordial pain as the main clinical manifestation caused by coronary atherosclerosis stenosis and temporary myocardial ischemia and hypoxia. At present, the incidence of coronary heart disease in China is increasing year by year, which seriously endangers people's health and life. Coronary heart disease generally includes five types, the most serious of which is acute myocardial infarction, which often requires emergency treatment, otherwise the risk is extremely high; The incidence of angina pectoris is the most, including stable angina pectoris and unstable angina pectoris, in which stable angina pectoris is the lightest coronary heart disease; There are cardiac arrest, painless myocardial ischemia and ischemic cardiomyopathy. These five conditions can be converted to each other in clinic, depending on whether the lesion progresses and whether the treatment is effective. Therefore, it is of great significance to popularize the knowledge of coronary heart disease and actively and effectively prevent coronary heart disease for improving people's health level. The following focuses on the related content of angina pectoris.