why does my arm hurt after b12 injection Shoulder Pain Vaccination: When to Seek Help How to self-inject intramuscular vitamin

There are minor side effects associated with B12 shots, including possible pain and swelling at the injection site, nausea, and headaches for some people

Along with the increase in energy will likely be the increase in cognitive functioning, so you may notice an improvement in your memory and quality of sleep around the same time as the reduction in fatigue

Another important concern of ours is Vitamin B12 which seems to be a fundamental bodily nutrient that helps in the production of energy

These include serious infection, uremia or renal failure, drugs with bone marrow suppression properties (e.g., chloramphenicol), or concurrent undiagnosed folic acid or iron deficiency anemia