Yes, about 2 months ago. I had a 3mm stone that took 8 days to pass. Unbelievable pain, even with huge doses of pain killers.
After the ordeal, I looked on the internet for ways to deal with this. The "remedy" that most people seemed to endorse was this: mix 2 oz of lemon juice with 2 ozs of virgin olive oil. Drink it all down at once. A lot of people swore this helped them pass the stone more quickly. My brother in law got stones a month ago, and he said this worked well for him.
Drink a lot. I know it hurts like hell when it moves, but the only way to get it out of your system is to flush it out.
Good luck!