I don't know if this helps but, I had a problem with urinating and so the dr thought that I had kidney problems or bladder. They ran all the tests they could (I also had blood in my urine that they could not account for) and found nothing. After 6 mos. of this, a returning urologist told them that my problem was my urethers were too narrow. I had surgery to widen them and have been fine since. You may want to check this out. At least it is another possible solution. Let me know. Lots of prayer, care and love, Laura.