Peripheral Neuropathy: Symptoms, Causes, Diagnosis, and Treatment Are B12 Shots Safe? Royal Palm Beach Medical Group Lets do my first B12 injection together This is something Ive been nervous about for a long time, but today I finally did itand it honestly wasnt bad at all. I used the Union Medico needle guide Vitamin B12 plays a crucial role in your nervous system, blood formation, and energy levels When levels are too low, your body sends warning signals you shouldn't ignore. Common symptoms of