Hello, If you have had a series of tests already which have failed to show any definite pathology in the stomach or related organs and you have been examined by a doctor who wishes to perform an endoscopy then. By all means have that particular test completed before anything else. However, if this is also unable to demonstrate any pathology then, I believe you may wish to consider that anxiety and stress may be to blame for the symptoms. Abdominal pain, bloating, gassy feelings can be brought about by such psychological pressures and it may be worthwhile speaking to someone on how to perform relaxation exercises and on how to use breathing techniques to feel more comfortable both physically and mentally. You may wish to become part of a gym and get into a workout routine as well as this can also divert painful vague symptoms away from the referred area and improve your ability to relax once you ve exerted yourself a bit. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Dariush Saghafi, Neurologist