I ve had problems with kidney stones for about 3 months. I ve passed three stones with great difficulty. I still have 2 stones in my right kidney that are to large to pass. My urologist said that the stones should not be causing me any pain, but I have a thumping, throbbing pain in my right flank. My urologist said that Lithotripsy would have to be done so the stone could pass. He explained that this could be very painful, but that I should be having no pain at this time. If not kidney stones, what should we be looking for? I have been an RN for many years. I am not trying to self diagnose, but I still believe that the pain is kidney stone related. HELP!