My b12 is sky high right now but I did have a spine MRI in October. Docs suspected stenosis causing numbness in toes, but ruled it out. I have "mild stenosis" but I will ask the Neuro-muscular doc to take another look.

Symptoms accelerated in early November ... very sudden onset of full body tingling, cramping and twitching muscles. Lower legs mostly affected up to knees and mild balance and walking issues at first, but much more difficult now.

I also had just had a flu and Pneumonia vaccination in October and still wonder if that had something to do with the sudden onset. But, at this point I just want to deal with the disease and your suggestion to take another look at the spine is very helpful.

thank you!