I had a similar problem, I was so jammed up with stones and sludge that I vomited and then would feel ill for a week or so. I persisted and continued to do Liver-Flush 2 weeks or a month apart. The first LFs no stones came out but then they started and eventually thousands of stones came out and I slowly began to regain my health.
In addition to the bile system congestion I had some parasites in my upper small intestine and flukes in my bile system in the liver and a lot of inflammation there too so I had small intestine constipation. I needed to clear out this constipation for if I did not when when I drank the grapefruit/olive oil it would not be able to pass from the stomach into the intestine making me want to vomit. Besides the worms causing problems, the inflammation in the small intestine was caused by a sensitivity/intolerance to gluten and some other foods.