In addition to all the other good advice you've received so far, you should make sure that you are supplementing with vitamins and minerals. Pay attention to things like B12, Calcium, Iron, etc. If you have worms they tend to eat these things up and it's hard to function without them. Look into seeing a Naturopathic Doctor that can test you for deficiencies and can hopefully guide your parasite cleanse. You may also consider breaking your fast and going slower with everything. A gradual cleanse is the best way to go.