Suddenly heart discomfort chest tightness breathlessness patients need to go to the local hospital as soon as possible, as soon as possible to clarify the cause of the disease. Generally, treatment can be carried out through the use of drugs, oxygen inhalation and other ways. The causes of chest tightness and heart discomfort include coronary heart disease, hyperthyroidism and other pathologic factors, as well as physiologic factors such as the environment and mood. 1. Coronary heart disease: Chest tightness and breathlessness can occur when coronary heart disease develops. Chest tightness caused by coronary heart disease can use nitroglycerin to alleviate the symptoms, and in the stabilization period can use aspirin, metoprolol and other drugs for treatment. 2. Hyperthyroidism: patients with hyperthyroidism can be treated with antithyroid hormone drugs such as propylthiouracil and methimazole. 3. Physiological factors: heart discomfort and chest tightness caused by environmental hypoxia and mental stress can be relieved by rest and intermittent oxygen intake. It is recommended that the patient should consult the doctor as soon as possible and actively cooperate with the doctor for treatment.