question: I have stage 3 kidney disease and am looking for answers. I also have a history of Hyperparathyroidism, hypertension, Hypercholesterolemia, kidney stones, and past history of ano-rectal cancer, no surgery required. Please tell me if my left flank pain, pain in my legs and buttocks are related to the kidney thing, how it can be fixed, or if it can. My M.D. is hard to reach.