Hello, Mostly it s gastritis and reflux disease. Do you upper abdominal pain, nausea, 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 tablet Pan DSR before breakfast once a day for two weeks. Secondly does this pain increases in applying pressure over the area, if yes, it could be costochondritis and it s a musculoskeletal type of pain and needs prolonged NSAID therapy. Does this pain increases on deep breathing and coughing etcetera. If yes, it a pain arising from the lining of the lungs and needs NSAIDs treatment and evaluation. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Sagar Makode