I agree that you need to do a parasite cleanse. The fact that your gall bladder is making stones is an indication of parasitic infection, imho. I would try to postpone the surgery and do some parasite cleansing. The only thing is that it's a two step forward one step back process that can take years. You have to cleanse and take a break, cleanse and take a break, over and over. If you go ahead with the surgery, you still need to do a parasite cleanse afterward.