I just got my lab work back and my vitamin b12 is up from 790 to over 2000 (too high to read) in a matter of six months. I originally had it tested because I was having tingling (paresthesia) in my left side of my back six months ago. It has since worsened, spreading to my face and arm. My vitamin b 1(one) is low now. 6units in plasma. And my vitamin d is also low despite supplementing. I'm also having fatigue, anxiety, soreness, headaches, and a rib cage/chest pain that can only be described as stabbing pain radiating to my back that comes and goes. What the heck is going on???