What is difference between b12 deficiency neuropathy and diabetic neuropathy?

None: Both mainly affect the autonomic (automatic) nervous system. Diabeetic neuropathy is related to the metabolism of vitamin b1.

Neuropathy: Vit B12 deficiency neuropathy affecting the spinal cord leads to sensory and motor dysfunction, burning sensation in arms and legs in both sides and imbalance gait, the motor causing muscle cramps, loss of muscle mass and control, it can be treated with vit b12. Dibetic neuropathy affects sensory nerves and autonomic system leads to burning arms & legs, sexual, bldder and sweating dysfunctions.