Avoid use during pregnancy or breastfeeding
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
This approach may help manage nausea while ensuring consistent energy intake
One subcutaneous TB-500 injection, anywhere on the abdomen, begins circulating to every site of inflammation in the body simultaneously
Some peptides can be mixed in the same syringe while others require separate injections