Hello, Most probably an acidity, reflux and gastritis. Do you also have nausea, bloating, burping, increase in pain on food, sour water feeling in throat or chest burning, these are the other symptoms and may be associated. You should avoid fatty, oily and spicy diet. Have some walk after having food instead of taking rest. Have multiple small meals instead of heavy meals. Have regular sleep habits and avoid stress. Lots of green leafy vegetables, fruits. Avoid smoking and alcohol if any. You can get prescribed tab Pan DSR 40 mg or esomiprazole domperidone combination beforebreakfast once a day for 2 weeks. If not adequately relieved, then you should add Syr sucral O or gelusil two teaspoon three times a day for a week. For immediate pain relief, you can have antispasmodic like tab Dicyclomine 20 or hyoscyamine 10 mg whenever needed upto three times a day. Hope this helps you and get back if you have any doubts.