Chest tightness chest pain more than two months back heartache do not know what disease

The patient has chest distress, chest pain and back heartache, which may be caused by coronary heart disease, angina pectoris, myocardial infarction and other diseases. If the patient has coronary heart disease, the patient usually has symptoms such as precordial pain, chest distress, chest pain, palpitations, suffocation, shortness of breath, dyspnea, irregular pulse, etc.