Bhanky,
You should try a very low carb, moderate protein, high fat eating plan.
Likely, many of your digestive problems would disappear.
Give it a shot. Right now you are a sh8tting and twisted gut wreck.
What have you got to lose?
You have to keep the fat intake high though but no trans or hydrogenated fats.
Good fat:
Olive oil
Butter
Heavy cream
Animal fat
Avocados
Nuts