Ninan
Senior Member
- Messages
- 523
When my B12 protocol doesn't work, I crash severely. When I do, and some time before, I have a cold, icy sensation in my brain. Mostly on the top/back and high up on the sides. I googeled it and it seems it could bu due to decreased blood flow/vasoconstriction? Someone associated it with B12 deficiency. Anyone who recognizes this feeling?