OK firstly, I have to say this... Ciprofloxacan is BAD! It can cause lots of long term issues (huge damage to bones/joints etc.) and if you read up about it, you'll find that one of the KNOWN side effects is "Death on first dose!".
Secondly, it sounds to me like you have the beginnings of an infection (doctors are only human and not always correct) depending on where you were tested, you will probably find that a lots of the time, the tests are rushed and so do not find the bacteria that cause UTI's since these, when done properly take about 6 days because they need to make a broth to allow the bacteria to develop into larger amounts in many cases.
If you can hold the urine in longer when you get the urge, it will help to prevent your bladder from shrinking, which would make the problem worse.
....You know, I'm feeling VERY angry about your doctor.... Why on earth would he give you something as strong as Ciporfloxacin if he didn't even think that you had a UTI in the first place.... What a b*s*a*d!
....Sorry, it really gets to me.
I think that you should try using something like Waterfall D-Mannose which is a natural product that won't cause you any harm, it WILL however flush away any harmful bacteria when you pee, and it acts as a natural anti inflammatory which would give you some light relief from the pain.
I really, really hope that you get well soon. Your post has made me feel rather emotional about the whole thing.
Please feel free to PM me if you would like any support. I suffered for a long time because of so called doctors 'anything to shut you up' attitude, but I'd be more than happy to help you in any way I can.
Lots of love,
Chiyaki.
xXx