can you use insulin needles for b12 injections Shots at Home: How, Where & How Often to Inject Yourself B12 Injection Needle Size |

If you're severely lacking in vitamin B12, getting a methylcobalamin injection can help you feel more energized

(PubMed) McCleery J, Abraham RP, Denton DA, et al

However, exclusive use of folic acid in treating vitamin B12 deficient megaloblastic anemia could result in progressive and irreversible neurologic damage

If you experience suspected adverse effects from vitamin B12 medicines, report them to the MHRA Yellow Card scheme

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

They provide rapid symptom relief, improved neurological function, and enhanced energy levels