Journal General Practice 12 (4), 169173
If you see any air bubbles, lightly tap or flick the syringe to draw the bubbles to the top (the end with the needle) and expel the air
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
These injections should only be used under medical supervision
Vyora provides compounded Semaglutide and Tirzepatide, two GLP-1 medications
Assists in red blood cell production: Vitamin injections stimulate the production of red blood cells, which are necessary for oxygen transport and preventing anemia