Drinking a lot of water chest tightness can be seen in normal people, may also be chronic gastritis, coronary heart disease caused by, should consult a doctor in a timely manner, to clarify the cause of treatment. 1. Physiological conditions: normal people will drink a lot of water in a short period of time after the chest tightness, generally can be relieved on their own, this kind of people should develop a good lifestyle, generally no special treatment. 2. Chronic gastritis: Helicobacter pylori infection, autoimmune factors such as chronic gastritis caused by drinking a lot of water can also lead to chest tightness, such people will also have postprandial fullness, epigastric pain, nausea and other symptoms, can be used under the guidance of a doctor, such as omeprazole and other drugs for treatment. 3. Coronary heart disease: middle-aged and elderly people after drinking water chest tightness should be considered and coronary heart disease, it will also have chest pressure, dyspnea and other symptoms, should seek medical attention.