You sound similar to myself except my biggest complaint is acid reflux and gastritis.
I'm 20 and all of my symptoms started after taking Antibiotics and like yourself I feel as if I've tried everything and nothing helps. I really feel in some cases the medication we've taken has done something to our bodies that is either irreversible or will require something more than diet and supplements alone. The main problem I have faced is doctors not wanting to help me in finding answers as much as I feel they should.