I was just going to post a similar question and have just spotted this. I last week completed a course of antibiotics (which I was very reluctant to take!) for a UTI and have started with a flare-up a few days later. I have mentioned this to my Consultant and he didn't think that would be the cause of it but I had been feeling absoultely fine, other than an upset stomach on the antibiotics.
I wanted to check what the real professionals thought about this as it seems that the patients often know more than our Dr's!!