At night i feel like i need to urinate all the time.. i can go to the toilet, get back in to bed then need it again! Its a nightmare! I have been to the doctors and they sent a urine sample off and they said it was all clear, i do have a kidney problem where my one of my kidneys only functions 25% but i had blood tests only a couple of months ago and they all came back clear as well. In the day i go to the toilet regular but as soon as its bed time i need it all the time. Sometimes i even wake up 2/3 times a night. Help!!