vitamin b12 injections are they safe What Injections? And Are Safe? Everything you need to know

It seems to be a case that there is a distribution issue involving the injections rather than a shortage of the injections

BMC Vet Res 8, 62

Always good to have a reason I have also had this happen when my folate was low , it may be worth you getting it checked I had self inject my B12 every 4 weeks for the last 20+ (cannot really remember how long accurately), and 2 months ago got a similar 'electric shock tingling' all over my body - head, face, arms, hands, legs, feet etc within a couple of minutes of injecting, which lasted about 3 seconds or so

Separate reporting from office visit : If done during an E/M visit (e.g., 99213), Modifier 25 may be required on the E/M code to indicate the injection is a separately identifiable service