vitamin b12 injection headache Common & Rare Side Effects

Low-frequency BOLD fluctuations demonstrate altered thalamocortical connectivity in diabetic neuropathic pain

In addition, vitamin B12 deficiency can increase your chances of having skin numbness and tingling, poor mental health, as well as decreased cognitive function, and poor coordination

So I figured he was probably super anemic, was not eating and needed to build his blood back up

Anything higher than that quickly becomes too much volume for one subQ site, which is why oral capsules are the standard route

As such, some management options could prove beneficial in alleviating symptoms and improving overall health and well-being