Jfill21,
When I was at 10 weeks I was in the same situation as you describe. Exactly! Output that was different every time, burning, leakage causing new burns. I couldn't leave the house for more than a few hours without feeling extreme discomfort and anxiety from burning, every week brought some new frustrating issue. Exhausting. But around six or eight months things started to get better. I stopped using Imodium around the third month to try and let my system develop its own schedule. Had pouchitis a few times and took Cipro for immediate results (haven't needed it for a year). I used the bidet bottle every single time without fail, starting before I left the hospital after reversal, and bought the hot and cold water bidet attachment for the home toilet. Cleaning with water every time saved my behind and the bum-on-fire stopped. After bathing used a hair dryer to thoroughly dry the area.
I'm 19 months now and no burning, no issues, no medication for the j pouch. It will get better. Your diet will expand to include new or familiar foods, you'll learn what your new plumbing can tolerate. You are early days and you are doing all the right things using the bidet bottle and a sitz basin to help the area. I also relied on Zincofax baby bum cream to heal that area fast.