I wouldn't necessarily try the flush until you hear something from your Dr. Even though flushing can't hurt you---you wouldn't want to get something stirred up in there that might irritate something that's already going on. If he says it's a stone, then I'd flush. If you go to the second page here on the liver forum under "My U/S Results", I believe you'll find the recipe and a lot of information regarding the flush that I used and a few others here on the board.
For me, flushing took away my insomnia and the pain/heavy feeling I had in my liver. I was hoping it would take about 50 pounds away, but no luck with that

Good luck to you and hope you start feeling better.