Hi hvalenti,
If you go to the peripheral neuropathy forum on NeuroTalk you will find quite a lot of information on B12 deficiency. This is the link - or at least I hope it gets you there.
http://neurotalk.psychcentral.com/forumdisplay.php?f=20
Just wondering if you have had testing done for coeliac/celiac disease by having the IgA and IgG antigliadin tests and Anti -tTG done?
Megan