hello, Mostly it s a acidity and reflux disease. Do you also have nausea, vomiting, bloating, burping, increase in pain on food, sour water feeling in throat or chest burning, if yes it further supports the diagnosis. You should avoid fatty, oily and high calorie 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 beforebreakfast once a day for 2 weeks. For cramps you can tab dicyclomine 20 or hyoscyamine 10 mg whenever needed basis prescribed from local doctor. If it doesn t respond, you should get yourself examined and need some investigation like Ultrasound and stool examination. One ECG to rule out heart problem although doesn t appear to be one. Also, may need deworming with Albendazole etc.