Low energy...what's going on?!?!

I'm on day 7 of a planned 30 day cleanse. Problem is I'm drained, and I don't understand why. I've done the MC before an felt like I was walking on air. Now I'm dead tired. Any insight? Oh...to help with comments; -I drink 72oz of lemonade a day -I'm now at the point where I'm eliminating really dark matter -I'm also passing parasites/worms -I'm taking supplements, as I need the trace minerals to help control my bi-polar disorder as I'm not taking meds while on fast Thanks in advance