I posted here about 4 months ago with a B12 of 300 and folate of around 2, both I was told were in normal range. I had severe muscle twitching, muscle pain, derealization, heart palpitations, panic attacks, pains after urinating.

I took Jarrows B12 5000mcg and 1.6mg folate daily for 3 months. Slowly most symptoms evaporated. I stopped for a week and got blood tested again. Now at 723 ng/L B12 and 14.3 ug/L Folate. I was also mildy magnesium and vitamin D deficient which have been corrected.

There's 2 reasons I'm posting. Firstly, I want to say thank you to those that offered me advice here and were more helpful than any doctor. Secondly I want to ask, what now? I still suffer from some muscle twitching in strange places (eyelids, bridges of feet etc). Should I keep going with the B12 and folate? I have noticed that the big doses of B12 now actually cause an anxious sort of stimulation a while after taking them.