I have heard that you can suffer attacks if the bile duct is not open all the way or the stones are just to big to pass. I have done 4 cleases and have never had any problems but I did start out on the prescription medication that helps desolve them. So you may want to ask you Dr. for a prescription. Another thing you can consider is seeing some one who studied East Medicine and have them make a Tonic from different herbs, I take that also.
Just a couple suggestions because I don't want mine taken out like my DR. would like....