I have been experiencing neuropathy-like symptoms for almost 6 months, although my EMG and physical exams show no significant nerve damage. After numerous tests they determined my B-12 was 315 (low). It has increased to over 800 with supplements. My neurologist said it can take 6-12 months for symptoms to improve. I have been following the B-12 Society (based in the UK) on Facebook. They are insistent that if you have neurological symptoms you need B-12 injections to get the vitamin into your cells. They feel that with oral supplements Vitamin B-12 only sits in the bloodstream and doesn't truly heal the body. My neurologist disagrees and actually told me to go off B-12 since my numbers have dramatically increased (I still take B complex and a multi-vitamin). I am so confused and feel there are no clear answers when it comes to B-12 deficiency. Magnesium glycinate has been a godsend for me to get restful sleep at night. Best wishes to you for a full recovery.