Did you use Epsom Salts ?
Why don't you try classic Hulda Clark s flush? You can find the recipe on this site. It is simple and very effective, Epsom Salts help relax and stretch of bile ducts so that it will be easier for the stones to pass. Along with that Epsoms block absorption of toxines released during clense and cause diarrhea that helps to get rid of the stones as soon as possible.