looks like you have tried alot.. have you tried enzymes...
Pancreatic is best since it cleans out dead matter... and helps with digestion, inflamtion. You name it... After 6 months of them maybe you will clean out the problem. Take 10 15 a day between meals... 1/2 hour before or 2 hours after.
Metagentics has a great one called ... Azeo Pangen... what?... I don;t know why it is called that. enzymetica has good ones also.
If I can find any links to enzymes that explain why you need them.. I will put it on here again. Long and short of it is... we run out about age 35-40.