Have had back pain for some time now. Area by kidney is swollen. I have different degrees of pain ranging from mild to very uncomfortable, not severe. Have been icing swollen/painful area two to three times a day for about 2 weeks now. I ice 20 minutes at a time. Yesterday, I started using moist heat for 15 min, followed by icing for 20 min. Seems to help, but start getting achy again in about an hour. I urinate frequently, usually once or twice in a couple of hours, and sometimes I get the urge where I have to urinate right away. I usually have to get up two to four times a night to urinate. It is never painful when I urinate, but I do sometimes seem to not be able to empty my bladder completely. I may go and then go again a half hour later. Since I m swollen around my kidney area, is it possible I may have a kidney infection, or kidney stones?