This past summer I borrowed my cousin's zapper and zapped for 2 weeks, then did the liver flush. I passed about 450 stones of all sizes and color. Then I tried doing a flush without zapping, and passed about 20 stones. A couple of months later I had a major major attack, which I had to go to the emergency room, which was horrible. I didn't have surgery, I refuse to have any body parts removed. I suffered through it, and it finally calmed down with some help from tylenol 3's. I am doing a parasite cleanse now and soon to do the Liver Flush once more, and fully believe its the parasites playing haveck on my system. I finally found a place that I can order Dr. Clark's book, so I look forward to benefitting from all her research.