Last night was my first liver flush also and I had something similar happen. Everything had been going quite well until I woke up at 1 am with a parched throat. Thinking it wouldn't make any difference, I took 3 sips of water. That's when my insides got quite upset with me resulting in me vomiting up about half of the olive oil mixture. This made me concerned that it would render the whole flush null and void - BUT not so. Stones have been plentifully emerging all morning. It's after one o'clock and I just passed two of the largest ones yet, though little else.
I sure won't be drinking ANY water after the OO mixture next time - nor will I eat any crisps. They both freak out the body. Steh, hope your flush makes you feel better!!! And Jhan, thanks so much for the sage advise.