First, I wanted to say that I love this forum -- everyone is so friendly and knowledgeable. I am currently at the end of day 10 of my 20 day Water Fast ... and for the last couple of days I have felt very nauseous in the evenings. When throwing up, it is mostly clear liquid but sometimes also what looks like very distilled broccoli (that shade of green) or yellow (sorry for the details!). Is this at all normal or a warning sign that I should stop? I have done a 10 day Water Fast before and also threw up, but only once and on day 4. Please help?