question: Hello, I have recently been told I have medullary sponge kidney along with rheumatoid arthritis. Because I have been urinating very frequently, my doctor has taken urine samples over the past 4 months. A couple have come back with blood in them, and I noticed that my epithelial cells have gone from few to many. Do you think I should be concerned? Because the bacteria came back as occ, my doctor does not feel I have a urinary tract infection and I have not pain when urinating, but I do have kidney pain quite frequently. Thank you