b12 injection and covid vaccination Injections: Increase Your Energy, Focus, A Whole Lot More Vitamin B-12 Shots Available Now
Description
2011 Jan;96(1):150-8

I was scared that it would hurt and I needed over an hour alone in the bathroom to pluck-up the courage

Taking medications, such as corticosteroids for inflammation, may weaken bones and increase the likelihood of osteoporosis
Its helpful to track how you feel in the days following your first shot
