There are many reasons why chest tightness and vomiting can occur. It may be caused by respiratory disease, digestive disease, or cardiovascular disease. If you have chest tightness and vomiting, you can inject gastrofacial or promethazine intramuscularly. If the vomiting is caused by acute gastritis, which is caused by bacterial infection, anti-infective treatment with levofloxacin hydrochloride or norfloxacin is needed. The symptoms of infection will improve and the vomiting will also improve. If it is a functional gastric disease, it needs to be treated with mosapride citrate plus omeprazole, acid suppression and stomach protection to improve gastrointestinal function. Both diseases require a light diet, less fried and spicy food, less greasy food, cold food, and to abstain from alcohol. The usual moderate activities, functional exercise, etc.