Your body needs vitamin B12 to keep blood cells healthy and to make your nerves work right. But what happens when you run low? Here are some signs: https: wb.md 3OUOc1J Think vitamin deficiencies only affect energy or skin? Think again they can harm your spine and nerves too!, Vitamin B12 Deficiency, Can directly damage the spinal cord (Subacute Combined My b12 levels are now great but i still suffer numbness : r B12_Deficiency Peripheral Neuropathy: What It Is, Symptoms & Treatment