Hello There! I Am Writing Because For The Past Year

Hello there! I am writing because for the past year I've had bouts of diarrhea, bloating and gassiness on and off. The episodes are inconsistent and can appear suddenly. There have been times where I would have accidents because I could not make to the bathroom in time. I did take medictions for pre diabetes (metformin and bydureon) but I have disconntinued them since they my symptoms worse. I am a 27 y/o hispanic female and I am obese. Change in diet has appeared to help in my symptoms. Any advise is appreciated