There are many reasons for chest tightness and hidden pain, and the common reasons are usually cardiac neurosis, coronary atherosclerosis, peptic ulcer and so on. 1. Cardiac neurosis: symptoms are various, in cardiovascular mainly manifested as chest tightness, shortness of breath, chest pain, at the same time, accompanied by irritability, anxiety, mainly due to psychological factors, mental tension and other causes of neural regulation disorders. 2. Coronary artery atherosclerosis: with the atherosclerotic plaque increases, the degree of vascular stenosis increases, chest tightness and chest pain after activity, severe acute myocardial infarction. 3. Peptic ulcer: the typical symptom is epigastric pain, with periodicity and regularity, accompanied by nausea and vomiting. There are other causes of chest pain and vague pain. If the above symptoms occur, it is recommended to go to the hospital in time.