The worst part of this for me this time was with all the fluids you have to drink during the two part system it must have moved a kidney stone I have. I passed one five years ago in my motorhome during a race at Norwalk Ohio. I’m a side sleeper and it really bothered me for 4-5 nights and I had quite a bit of blood in my urine. Everything is tamed down for the last couple days. It’s hell to get old but it sure beats not making it to getting old.