In early Feb this year I had a thyroid test which revealed low B12/Vit D levels. I have Hashimoto's and had been supplementing anyway with B12 and B complex tablets for about three months. On Boxing Day last year 2016 I suddenly developed pain/numbness and tingling in my right thumb, hands, and toes/feet. I still have these symptoms and today I was reading that excessive B6 can cause this. And that insufficient B6 can also cause it. I'm lost as to what I should do. It may be entirely unrelated, but has anyone else experiencing pins/needles ceased taking the B6? And did the pins/needles disappear? I'm still on holiday in the UK and can't see my GP till I get back to Oz in mid-March, but it's freaking me out to be honest, and my fertile imagination is coming up with worse case scenarios of MS or something similar. I'm scaring myself googling for answers.