@Mij - I seem to have very few magnesium deficiency symptoms - mainly insomnia, low potassium, low calcium. But I don't have any neurological symptoms or blood pressure problems or extra fatigue (apart from PEM and lots of detoxing!) My worst symptoms are PEM, low potassium (which I'm working hard at correcting!) and probably mercury toxicity.
I was focusing on magnesium because Sarah Myhill recommended the injections - though that was 4-1/2 years ago - and my hair analysis is so low, so I'm trying to cover all the bases. Also, the last time my hair levels were good were right before I started crashing. And several people talk about how much mag injections helped them. There obviously seems to be a connection between crashing and low mag on hair analysis. However, that doesn't mean that one causes the other - mercury could be at the bottom of both crashing and low magnesium and I'm going to be doing the Quicksilver Mercury Tri Test to try to get more info re mercury. I've tried Cutler's protocol, it was difficult, I have a lot of trouble with detoxing, so am also getting the 23andme testing done to see if there are SNPs interfering with detoxing.
It's confusing, no one has all the answers, so last night it came to me to contact Dr. Myhill and get her opinion re the Exatest vs. hair analysis results. I noticed on her website that she talks about an RBC magnesium test, which I think would be the equivalent of the Exatest.
I just wanted to see if anyone on this board knew how it could be that my RBC levels were good but hair analysis so low. And maybe it's mercury- all roads seem to lead to mercury!