Joe,
Welcome but we are sorry for the reasons being here. While I did not have to have a cystectomy, I have had a few UTIs. Cipro is usually the choice on UTIs but, I had a really nasty one 2 years ago (I seem to stir them up on my annual scopes) It took something else to knock it out. You definetly don't want leave this unchecked with a temperature and weakness. Probably need a culture which can take a few days.
The emptying issue I can't help with but, there are some that have the neo and I trust they will see this and respond.