@mariannehale - Yikers!!! That's absolutely terrible- I didn't know it could do that!
I learned long ago that I can't take Advil (good for relieving pain, but it's a naproxin salt- key word being salt) because I bloated up like I water balloon. So sorry about your kidneys... they ought to put a black box warning on Advil for that kind of side effect. I have the opposite problem with the potassium and have to take a prescription supplement to bring it to the bottom of the 'normal' range.

Sue's right about the toll on the body and the time it takes to recover, so remember to be gentle with your self.