I always had bladder sensitivity post op...with my 1st pouch surgery they did a contrast study at 30 days post op because I was dribbling too and they were afraid that something was going on...it resolved itself (it was often the irritation from the catheter being in place for so long).
Now after over 15 other pouch/abdominal surgeries I don't panic...it is usually resolved within a few weeks...if not, I start with an ovule (the OTC stuff for mild irritations/yeast...)
I then move to cranberry juice and finally if still not resolved ended up on antibiotics.
I get the pressure, need to pee constantly and never feel done feeling.
Often it is due to general swelling in there too...it takes time.
In my case, unless there is pain and/or fever I don't worry too much...I just allow time to heal me.
Sharon