180pg at 21 years old. Whats everyone's experience after injections? : r B12_Deficiency A little insight to the importance of the b12 injections. My client hadn't been feeling well & had some bloods done with her GP. The results identified a severe deficiency in b12. Symptoms of High B12 Levels in Blood: UK Guide Bolt Pharmacy Does High B12 Mean Cancer? Understanding Elevated Vitamin B12 Levels Bolt Pharmacy Understanding the B12 Vitamin Shot: Benefits, Risks, and Dosage Guide Vitamin B12 Injection Dose for Adults: 7 Essential Dosage Facts & Schedules Liv Hospital