Hello everybody. I am on day 10 of a 21 day water fast and I have felt lousy for the last 3 days. I am a 43yr old Male 5'9" and was 170lbs before I started the fast. I am doing the fast in hopes of curing my sciatica that I have battled for over 17yrs. I believe an old dance injury caused some scar tissue to build up in the piriformis muscle and I also ran on the injury for years after. For about 7 days the fast felt great but then I entered into a state of severe nausea. I just feel crummy all the time and I have felt this way for three days! I will say that on day 7 I was feeling the nausea but I had a bowel movement and the nausea quickly disappeared. However,today (day 10) I had three bowel movements of the same quality but I'm still feeling nauseous. So I can tell my body is getting rid of old fecal material but now the nausea has remained. I'm starting to get a little nervous that something else is going on. I wonder if this is ketoacidosis. I feel a lot of churning and mild stomach flu-like symptoms like Irritable Bowel syndrome in my abdomen and have a tingly sensation from my neck down to my shoulders. I also feel tired and fatigued throughout the day. However, No headaches and I don't feel thirsty nor am I constantly urinating as are the symptoms of ketoacidosis. I have done one 10 day fast in the past and I think this was the same reason I stopped. I do drink plenty of distilled water that I first run through my Brita filter before drinking. I don't have any pre-existing medical conditions except the injury. Does anybody have any insight on this? Am I just getting rid of some serious toxins? Let me just say that before the fast I smoked marijuana constantly for over 7 years and I also ate junk food regularly for most of my life. I also didn't do any prep for the fast I just simply started it. I do have the bad taste in my mouth and coated tongue. I also pass gas about 3 times a day. After my shower today within a few hours my armpits were already producing BO. On a positive note my eyesight has considerably improved and I don't need my reading glasses anymore!!!! I don't feel like I'm on the verge of death or anything but I just want to make sure these aren't symptoms of something more serious. I am pretty skinny at this point but I still have a layer of fat around the belly so I don't think I'm at the tail end of my fat stores. I've also read that maybe the nausea could possibly be repressed emotional pains coming up as I remember having similar symptoms when I tripped on mushrooms. That might not be relevant but nonetheless any thoughts would be most humbly appreciated. Thanks for reading.