<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing a cough, vomiting, sharp chest pain, and chest tightness. Is there something wrong with me?  <response>: Yes, those are common symptoms of gastroesophageal reflux disease GERD. It occurs when stomach acid flows back into your esophagus, causing irritation and discomfort. 