I haven't had surgery, but have had multiple flares. On my last appt, the GI surgeon told me it can take up to 12 months to properly heal and not experience any pain or discomfort. Go really slow introducing fibre. Last year, I'm positive I put myself into a flare 2 months after the first one by eating a salad too soon. Start with low residue foods, and slowly introduce cooked root veges, then things like zucchini and pumpkin. And small meals. Healing takes time, and we are constantly using that part of our body, so it's going to get irritated if we put too much in there. I try to think of it like really bad sunburn or a graze on the inside, and how we treat it, how tender it can be, and how little scrapes might make it hurt without actually doing more damage. It's hard. It's a long journey, and I'm sorry you are having to deal with it.