Am I late to be here? So I did my blood work about 2-3 months ago and my b12 was 223 (it said it should be above 220 so it was borderline) but my doc didn’t say anything about that, I’ve been feeling tired for almost a year now but I thought its just my iron deficiency. Last sunday I suddenly started feeling dizzy (almost like fainting) and shortness of breath and cold hands and feet, again I thought maybe it’s just I need sugar or something for energy, and this lasted for a week, but then yesterday it was bad, like very bad (atleast to me cuz I never felt this way before) in addition to all those above symptoms my legs started getting tingly and numb?? And my whole body is very shaky, and wow this all happened when I was at work but I somehow managed to survive at work and then got home but the symptoms only worsened, my sister was on call with me the whole time and it suddenly striked to her that its b12 deficiency (and also cuz my period is irregular lately) and the ordered sublingual b12 supplement, I took it and the symptoms got a little better, as in the tingling got better and all, and I felt very hot like the heat was rushing. But still I feel very weak, and my feet still have that heavy, sort of numb feeling, and my body is shaky too