As per my understanding you are an athlete so you would be definitely fit but since you are complaining of constant chest pain and discomfort post lunch and dinner, kindly consult and get evaluated by a cardiologist. If he does not find any pathology in heart, then consult a Gastroenterologist for further evaluation; follow the treatment suggested by the doctors. Consult a cardiologist and Gastroenterologist. Hope our answer helps you. You can click on following links to find doctors who will help - 1.) 10 Best Cardiologist in India, 2.) Gastroenterologists in India.