I am experience water faster. i have done even a 28 day fast. I am a raw food vegan and I am quite healthy for 72 years old. i am close to my ideal weight, however still have 16 pounds to lose, so I am not too skinny to fast. i am on day 8 of this fast and i feel extremely weak and drawn. happy that i do not have lot's of odors and problems erupting, likely due to the fact that I fast several times a year. this time i just feal weaker than usual and wanting to make certain i will not be harming myself. I did have to accomplish some things the first 3-4 days (nothing too physical, however have been able to totally rest since then.