There's actually still fluoride in bottled water (unless it's distilled). Most water bottles are filled with tap water from the city they are manufactured in; that means they could have up to 4 ppm of fluoride in them (that
Were you drinking lots of water on your fast? It could be fluoride overload. I have had tons of problems my whole life (see my profile), and I was allergic to what seemed like all foods. When I went gluten free, I actually got worse. I finally found out that this is because of fluoride in my water. I was cooking lots of veggies and rice on the stove...