To me, it sounds like one of those "rock and a hard place" scenarios. Antibiotics help your IC symptoms, but may be counterproductive for your BCIR. One thinG seems certain, though. You can't expect to compare an ileal pouch function to colon function. In some ways, us folks with UC/Crohn's are at an advantage, because our bowel function was lousy before surgery. So, usually, even though not perfect, life after colectomy is not a huge life changer, except for better health. At least we are not filling the toilet with blood multiple times a day!
And yes, gastritis CAN cause tremendous amounts of gas. And yes, undigested carbs are a major source of gas. You'd think bread and potatoes are the common sense thing to eat (AKA, comfort food), but not necessarily.
Add adhesions to the mess, and that equals pain. I hope you get it sorted out.
Jan
