glittergalaze
Basically, the green stuff is bile. It means that your liver is cleaning itself. This type of nausea/vomiting happened to me too. The deal is, if you keep vomiting, your electrolyte balance is getting shot.
People on this forum believe that at this stage, you should terminate the fast, refeed on an extremely clean, vegan diet that restocks your body with vitamins, minerals, and useful essential oils, and then fast for another 20 days.
Liver Flushes are an aternative medicine detox procedure: you drink a mixture of oil and grapefruit juice to cause the liver to produce tons of bile and "flush" itself - you can research it more and see if this is something you want to do at a later point.
Methinks the following: electrolyte tablets. I haven't actually tested this, but another forum member wrote a while ago that if nausea develops in the later stages of a fast it can be a symptom of electrolyte imballance. So, if I were you, I'd take an electrolyte tablet, then another half a day later (e.g. one morning one night),and see how you fare. If you feel better, congratulations. If not, break the fast. People on this forum disapprove of taking supplements while fasting, but I think you lose nothing by supplementing a small number of times.
I am in the early days of a
Water Fast myself (still not over the 3-4 day hurdle so it is too early to speak), but for this precise reason I am stocked on nuun all day electrolyte tablets.
Good luck and keep us posted. The main thing is not to freak out: what is happening with you is normal, the question is only will you break the fast at this stage or supplement to see what happens. In either case, you will live to tell the tale and you will not do any damage to your organism.