I have many kidney stones which often don't show on the tests then pass a few days later. If all continues to be negative, you might look at interstitial cystitis. You can e-mail me for links to info. since i have IC and am an IC support group leader
hi,
I know it is a "pain in the behind !! and bladder :/ " but I wouldn't let that stop you from getting more tests run, I'd asked for blood work, a, C.T. scan and a 24 hour urinary catch.I dont know if you are a man or a woman but you may want to talk to your ob-gyn also.to cover every base. and write down everything!! even if it seems silly, I wake up in the middle of the night with hiccups and I itch like crazy, both are signs of kidney problems, who knew!!! I hope this helps! and be strong, I don't know how many times I just wanted to give up, and how long it took to find out what was really going on with me,best of luck! Puddles66