Hi, I know how you feel. I myself did my second juice fast and actually gained 4 lbs and my metabolism shut off (I wasn't drinking enough juice). I am not a doctor. I would honestly suggest to stick with it another few days. Try adding a multivitamin to your diet? You can also try some enemas to clean out your intestines ( coffee enemas are awesome, gross, but awesome). But I would just keep trying different variations of your diet to figure out what works. Try eliminating dairy for a week or two, then if that doesn't work, try gluten free, or then vegetarian. You might look up some food allergies online and see. Candida is another horrible ailment, though your situation doesn't sound like candida. There are tons of different dietary caused symptoms, and someone somewhere has yours. Good luck and please don't give up!