can b12 injection cause headache Why Do I Feel Worse After My Injection? Understanding Post-Injecti – Oxford Origins Vitamin B12 Side Effects

If you experience progressive neurological symptoms (numbness, tingling, difficulty walking), cognitive changes, or severe anaemia, seek urgent GP assessment

If you develop fatigue, memory problems, or neuropathy despite weekly B12 injections, check B12, methylmalonic acid, and homocysteine levels to assess functional B12 status

Therefore, treatment with Nascobal Nasal Spray should be deferred until symptoms have subsided

Reconstitution: 3.0 mL per 2 mg vial (~0.667 mg/mL) for accurate unit measurements

This deficiency can be corrected with regular B12 injections from Pamela Phillips, Ph.D., FNP-C, and her team at Phillips Family Medical in DeSoto, Texas