I am very sorry to hear about your stone and your concern towards it. There is one veteran poster called "hanna" who has a one inch stone. She has flushed 60+ times and the stone is still there. But she continues to live with it and as per her she is symptom free. So there u go. some one who has done 60+ flushes and still keeps the stone.
My suggestion, consume plenty of Lime/lemon juice before after meals. Also try Apple Cider Vinegar. Drink it down in 1/2 glass of water and then drink plenty of plain water. Also granulated lecithin is supposed to dissolve stones. Aim at consuming 2-3 limes on a daily basis. One lime first thing in morning, then one after lunch and one after dinner. The citric acid in lime can react with the calcium and try to melt it.
I hope you continue to keep your GB and not give in to surgery. It would be horrible, if you have to loose your GB. Surgery really scares me.
Of course eat healthy.
Try some Yoga poses, they should help. I would personally not suggest Liver FLushing, but its your decision.