I would recommend getting your bowels moving properly before continuing anything else. Nothing will help if you aren't eliminating the toxins on a regular basis. You need to be pooping at least twice a day during a cleanse and a minimum of once day at all other times.
I get the same pins and needles feelings and also the twitching in my legs. I don't know what causes it, but I'm starting to think it's viral in nature. parasites carry other pathogens so even if it's a virus it could be caused by a parasite overload. This is all just speculation on my part though..