Something that will probably help you and is most definitely good for you is unfiltered raw honey. I had mysterious right side pain last year, and they found nothing after a scope.
I had on again off again symptoms this last year. After diet change which included adding raw unfiltered honey, I am symptom free atm.
I will say I have been militant with my diet, so I am sure this is just as important as the raw honey.
I have a compulsive disorder, so sticking to a rigid diet is actually really easy for me.
(who would have guessed being obessive could actually have some positive benefits

)
I know correlation doesn't imply causation, but it's impossible to deny that after taking a spoonful of raw honey on an empty stomach has improved my condition.
My side pain has basically disappeared since I began the honey regimen.
I generally eat two spoonfuls a day. This may seem like a lot, but I have pretty much cut out any refined sugar/carbohydrates so actually need those sugars.
Here is a link that explains why raw honey is good for your gut :
If you have blood sugar issues you'll naturally want to consult your doctor before loading up on the honey. Having said that, the raw honey is good for you even if it doesn't necessarily fix your stomach issues.