Hi there. I am new here - and I am looking for some information. I was just diagnosed with MSK - sponge kidney is what i was told. I go to another kidney specialist next week and was told to come with questions. Problem is, I don't know where to begin! I have been suffering from lower back pain for as long as I can remember, which I am now told is a symptom. I haven't passed (that I know of) any stones in over 10 years. Can anyone clue me in on other symptoms that I might be experiencing but could be chalking them up to something else (sore from exercising, lifting my kids, etc)? Any information is greatly appreciated!!