... have found out that I have kidney failure..six months ago I started to have major muscle cramps that would keep me up all night... for the past three months I have been in a wheel chair due to weakness in my legs I am able to stand with someone holding me but I am unable to move my legs or stand alone... two weeks ago I was told by my doctor that my thyroids are under active... could this be from the lipitor that I have been on since July 2010???