Doesn't seem to matter what I eat...

I believe I have hydrogen (constant diarrhea) SIBO, and for awhile I've been trying to eat clean. Think shredded chicken, avocado and a fried egg on top along with snacks like applesauce. I even fasted for a day and somehow still had horrible cramps and diarrhea.

So now I'm eating things like mayo tuna pasta salad and whatever.

The only thing that helps "tame" the diarrhea is taking activated charcoal. I can at least sleep most of the night now. And gas-x to prevent the gas pain pressing against my small intestine. I'm taking the charcoal like every day now, even though you're only "supposed" to take it a few days apart. But what's the difference as long as I take it away from meds and food?

Does anyone do something similar or have some insight?