Drinking water too fast chest pain may be related to airway reaction, reflux esophagitis, esophageal spasm and so on. 1. Airway reaction: drinking water too fast may have choking, the water may enter the bronchial tubes to cause violent coughing, resulting in chest pain symptoms, this situation is usually gradually relieved after rest. 2. Reflux esophagitis: in the process of drinking water, too fast, there may be stomach acid and other contents refluxed into the esophagus, strong stomach acid stimulation will cause pain in the chest, burning sensation. 3. Esophageal spasm: drinking water too fast can also cause esophageal spasm, esophageal spasm belongs to the esophageal dynamics of the disease, esophageal spasm can cause symptoms of chest pain. It is recommended to drink water too fast chest pain may also be all other reasons, you can go to the hospital to do a checkup, identify the causes under the guidance of the doctor symptomatic treatment.