jbeany, I have to admit, I haven't had this happen to me. But, when my hemoglobin was really low, I had this weird feeling in my lower back on my left side. I can't really explain it, it was like your hand or foot feels when it "falls asleep", all tingly and sort of numb. I told my doctor about it and he said the same thing, this type of kidney failure doesn't cause any pain and whatever you're feeling, it isn't related to your kidneys. When they got my hematocrit where it was supposed to be, the feeling stopped. Sometimes I just wish they would listen to us and not act like we don't know what we're talking about!
See how great it is to have this site? I've been having this pain for a couple of years, no doctor could explain it and they all acted like I was just imagining it. Now I can tell them I'm not the only ESRD patient that has this problem!