I have had this off and on left only facial tingling - it's just a weird feeling - not numb but like a sensation by my upper cheek and eye - i did wake up the other night with clenched teeth so i know i do this when i'm stressed. but can the b12 deficiency cause this feeling? i also have anxiety but don't want to contribute everything to that.

i have had this feeling before - i did have a b12 def a few years ago too. i wish i knew what it was.