I've not had my serum magnesium tested. I checked all tests run, and that was never one of them. No doc has ever batted an eye at my supplementation, but at my annual physical next month, I was going to ask for a full battery of electrolyte testing run. It looks like most are covered in the annual bloodwork done, but magnesium isn't.

I noticed an improvement pretty quickly. The twitching in my legs was unbelievable when this first hit, especially after exercise, so the improvement was noticeable. Like I said before, I still have that symptom, but it's greatly reduced.

I'm in the middle of a multi-week flare like I haven't had in a long time, and I just broke down and ordered a TENS device. I'll be reporting back on how/if it works.