Chest tightness, shortness of breath and urge to vomit are mainly seen clinically in the following conditions: First, insufficient blood supply to the heart in coronary heart disease. Such patients may have previous abnormalities in blood pressure, blood lipids and blood sugar, which develop under emotional excitement or activity, and examination of electrocardiogram and cardiac ultrasound helps to make a clear diagnosis. Second, lung causes, the most common are lung inflammation, pneumothorax, pulmonary embolism, etc., which may be accompanied by other features of lung diseases, such as chest pain, cough, sputum, coughing up blood, etc. Examination of chest CT and pulmonary artery CTA helps to make a clear diagnosis. Third, blood system diseases, the most common is severe anemia, due to the reduction of hemoglobin, the blood’s ability to transport oxygen, the body is in a state of oxygen deficiency can also appear such symptoms, need to find the cause of anemia and correct. Fourth, mental and psychological factors, such as staying up late, anxiety, sleep deprivation patients are also prone to this performance, exercise and improve sleep can help alleviate.