I was diagnosed with B12 def. 2years ago. My number was 28 which suggests several years of def. Since then, I still have balance problems as well as short term memory loss and neuropathy issues. (On more than one occasion I will lose keys in a split moment while I m trying to focus on another task) I have also had anxiety, depression, endocrine and fertility problems I feel like I will never fully recover. How do I get tested for these neurological issues and will I ever fully recouperate?