So you had a 1-step j-pouch. The good news is that no more surgeries for you. The bad news is that There is a LOT of recovery to do at once. I know because I had a 1-step too.
Most likely you are having gas pains while you adjust to a regular diet. Maybe eat smaller, more frequent meals. Rest a lot. Check your temp daily to make sure you aren’t picking up an infection. If your pain ratchets way up and you have a fever, something IS wrong and you need to call your surgeon.
Jan