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 Taking Vitamin B12? Read this first. While B12 is often hailed as a safe energy and brain booster, many real users are reporting unexpected side effects including anxiety, insomnia, Vitamin B12 Shots Specialist Near Me in Canton, MI When a T shot is missed, most of my Patients simply begin a new start date or wait until their usual shot day to return to schedule. The reason? Youre not going to lose the effects of T overnight