I also faced similar symptom. I believe My normal CR level 1.1 but after UT for 1 month. It was raised up to 1.35. I'm very worry about keeping doing UT after facing this phenomenon. Does anyone have any new finding for raised creatinine level? Because of this, I can't do UT anymore even though I know UT is very good remedy. I really want to do UT more ! Can any anyone help me?