I honestly hope you're just lying to troll, if not, you're seriously ill and you need to do the responsible thing by yourself. Stop blaming absurdly far-fetched things for every ailment you get, because that's what you always seem to do.
Judging by your bowel description, yours likely is caused by Crohn's disease and ulcerative colitis.
It's not fruit, you're ill. I would suggest looking at your diet and health as a whole regardless of whether you "feel good" on your normal no carb diet. There is obviously something not right with you, do the responsible thing, because your diet is not curing you by any stretch of the imagination. It's probably making you worse, but you probably don't want to hear that. Your thyroid is the master gland of your body, it governs everything. Your body is attacking your thyroid, as evidence by your poor reaction to carbs. Not eating carbs masks the problems, for now, but you're never going to get better.
Look into this: LDN: The Latest News
Naltrexone is used to help many autoimmune disorders. As always, think before you leap. You're responsible for you, not anyone else.