I'm miserable constantly feel like I'm bursting for the loo. Horrible feeling when I do, not burning more like there's still more to come. It's been going on over a week now. Went to GP on Tuesday with a urine sample it was clear no infection. She gave me a prescription for anti b in case it didn't clear up. I've taken a day off work as I wet myself on the bus yesterday. I've only drunk water for over a week, I've avoided citrus etc. I've taken the cistapurin sachets twice a day for over a week and I'm no better. Drunk gallons of water. Don't know what to do, if there's no infection what is this?