b12 injections and nausea Cyanocobalamin Vitamin Injection 1000 mcg — Mountainside Medical Why Do I Feel Worse
Description
If not addressed, insufficient B12 levels can impact the production of red blood cells, nerve function, and overall vitality

An injection site can feel painful or uncomfortable, or you may feel mild nausea or dizziness for a short period of time

They can figure out the best dose (and source) of the nutrient for you

B12 is also involved in nerve regeneration processes

Homocysteine Vitamin B12 deficiency leads to the accumulation of the amino acid homocysteine in the blood
