Wake up psychosis
I'm pretty sure I've been b12 deficient for like 5 years and I have become so accustomed to it that I am losing my mind when I try to correct it. It is too the point I almost want to stop taking it and just let it continue doing the damage because it is genuinely such a horrible feeling to go through trying to correct the deficiency. Last night before I went to sleep I felt chills down my spine, it was like I could feel the blood running through my spine. Then I just started absolutely freaking out. I felt really cold, and I felt tingling like inside of my head and I kept having random childhood memories running through my hea . And I had sharp back pain on my right side, but it kind of went away when I felt the flush of blood running through my back. It was a genuinely insane experience. I was like 100% sure I was going to die, but I just got some extremely broken sleep where I was like basically dreaming while I was awake and I was profusely sweating all night. It was honestly traumatizing, but like I genuinely feel better today despite literally being traumatized by what happened. I think my brain is a lot clearer today, but I am still quite shaken up by what happened yesterday. Maybe this really is a sign to stop taking it or that b12 really isn't the issue, but this is just fucking insane. I think I'm becoming schizophrenic or something