Abdominal pain. Rid from this situation.

I have abdominal pain since i was only 12, The point of pain is one inch above on the naval point. Now i am 40 years old house wife having 2 kids, I have taken many treatments, but till time exact problem is not diagnosed by any doctor or in any test, MRI/CT Scan/Ultra sounds/Endoscopy & many blood & biopsy test conducted also Stent was installed in year 2005 near pancreas area, which was removed out after few months . I have taken long treatment from PGIMER Chandigarh in Gerontologist department, under Doctor DK bhasin, But no pain improvement we have observed during the treatment. In past the pain was occurring once in a month, Now problem has been increased, and it is coming on every two three days interval. Requesting to concerned specialist to advise me, to get rid from this situation.