Its always a good idea to watch for any unusual symptoms, like signs of infection, and contact your provider if you have any concerns
Volume 88, Issues 1112, 14 March 2011, Pages 535-542 Chang, C.-H., Tsai, W.-C., Lin, M.-S., Hsu, Y.-H., & Pang, J.-H
Heart palpitations Pallid skin Constipation, diarrhea, and gassiness Vision loss Numbness or tingling in the extremities Depression and memory loss Sore tongue Confusion and hallucinations Personality changes Reduced sensitivity to pain or pressure Often these symptoms take several months to a year to develop and recognize, however, if youre a vegan or vegetarian and feel down or fatigued, you may be B12 deficient
L-carnitine transport and metabolism: Role in skeletal muscle and beyond