Hi I Currently Have A 2cm Stone In My Left

Hi I currently have a 2cm stone in my left kidney, I am suffering lower back pain it almost feels like cramp and almost impossible to move the back seems to have gone stiff .I am currently undergoing tests on blood .and waiting to see a urolagist. I have suffered stones most of my life .and not sure if the pain is from the stone .or back .please can u help ?