I transported a guy who I was positive had a stone, took him to the hospital, left him in bed. A few hours later we brought another pt in to the same hospital and the stone guy was gone, I asked the nurse if they admitted him, she says "No, he died in surgery about an hour after you left, turns out he had an anurism on his left decending aorta, ruptured and he bled to death."
No point to this, just sharing a story.
Good luck! My dad has had about a dozen stones, found out that Toradol (a non-narcotic, non-steroid anti-inflamitory drug, "nsaid")
WOrkes way better than narc's for the pain. Usualy they are made of calcium, so try cutting back on high calcium laden food like milk. Drink lots, and lots of water,. This will sometimes flush them out before they get big enough to cause pain.