I have abdominal stomach pain from december ,i have done endoscopy in january in which I got deudonial alser so I have completed the antibiotics course but the pain was same, after 1 and half month the pain was disappeared, after 3 month I have the same pain once again ,i have done ct, ultrasound and other blood test all are normal but the pain is still same in my upper abdomen so what should I do, it can be ibs so what should I do for that.