Hello and thanks for writing. I can understand your concern and would try to help you in the best possible way. Your problems seem to be due to acid reflux or indigestion only. However the possibility of cardiac disease may be ruled out by simple investigations like ECG or stress test. It is prudent to understand your medical history in a better way to get some clues regarding your condition. I suggest you see a doctor who may obtain a comprehensive history and relevant physical examination so as to guide the diagnostic workup for you. In the mean time you may try things like: 1. Avoid spicy food and fast foods 2. Take regular exercise like walks 3. Take a high fibre low fat diet 4. Take you dinner early and do not go to bed immediately after meals.