First of all, we should exclude organic lesions, common heart disease patients with pulmonary stasis, cardiac insufficiency. Angina pectoris in coronary artery disease with myocardial ischemia can also manifest as the above symptoms, and pulmonary diseases such as asthma attacks and pneumonia can also present with chest tightness and discomfort. It may also be lung tumors, pulmonary fibrosis, pleural effusion, etc., but these are often accompanied by other discomfort. Can also be seen in some functional lesions, a common is cardiac neurosis, characterized by self-conscious chest tightness, shortness of breath, subjective feeling of insufficient air, often sigh-like breathing, long out of breath after the feeling of comfort, and sometimes often accompanied by anxiety, sweating, insomnia, and other neurological symptoms, the treatment is mainly to change the way of life, adjust the mood, try to release the pressure, and increase the appropriate exercise.