Yes, Bananas are pretty bad for sure. You will want to eat foods that are low on the glycemic index. Granny smith apples are the only fruit I eat, except tomatoes. Think in terms of having dysbiosis because your gut flora is pretty much destroyed. Rebuilding the flora is basically the only way I see to regain health, but that is easier said than done. C. difficile overgrowth is also potentially causing a problem, which is normally kept in check by friendly bacteria. Look into Human Probiotic Infusion , the only way I know of replacing the flora.