try eating several small meals instead of three large ones whenever you can...Avoid foods that irritate your stomach, especially those that are spicy, acidic, fried or fatty...Maintaining a healthy weight. Excess pounds put pressure on your abdomen, pushing up your stomach and causing acid to back up into your esophagus..... Exercise helps you keep off extra weight and promotes better digestion. avoid coffee,tea etc... Avoid stress,consider calming activities, such as meditation, yoga etc...you might be having some malabsorption please consult nearest gastroenterologist they will guide you further.