Muscle Twitching.

Hello,
I have been posting on here alot lately about Muscle twitching and pinching all over my body, and muscles in my back as well as neck that feel sour.
I had a few responses on supplementing with Magnesium helps this.
During my recent visit to Cleveland clinic, i had my magnesium tested.
It was in the normal range.

Mine - 2.1
Range 1.7 - 2.6 mg/dL

In fact the doctor was impressed that all my levels of vitamins and nutrients that he checked, were very good.
But i have read on here that this level is innacurate, and not what is the level in your tissues.
My question: If i have Candida in the gut, and all my symptoms are created by the toxins entering the blood stream, that would mean leaky gut correct ? And if i have candida, doesnt that mean i should be having problems absorbing nutrients ?
Anybodys thoughts on the magnesium levels ? And should i still supplement ?
God, i have so many question but i cant think clearly with this crap. Oh, what can i take ot get the toxins from candida out of my blood and tissues.