I have many signs of B12 deficiency as well - neuro stuff, and bleeding tongue too ugh... They just tested it this week, so we will see what it shows.. however, I did just buy some methyl B12 sublingual I plan on taking.. It's amazing to me how these things can be overlooked.. however I was B6 toxic when my symptoms first started over twice the upper limit of normal.. So, I will not be taking any B6 supplements!