Been uncomfortable for lil while....
I had a 9mm kidney stone back in 2013. My urologist busted it with the shock wave thingy, and I passed it in little pieces for a while. I can tolerate a lot of pain, but that thing passing from my kidney to my uritor (sp?) about killed me! Like Rumble Fish said, a good dose of pain meds, and get into a tub of water as hot as you can possibly stand it to make the pain go away. I drink a lot of water with lemon in it now, and my last x ray at the urologist showed I am free of kidney stones. Good luck to you.