can b12 injections make you nauseous

https://farm-market.kiev.ua//assets/images/products/30019/kupit-5-amino-1mq-30-kapsul-v-kievi.jpg Aesthetic Support Size:1g I got a prescription for Cyanocobalamin and had a nurse teach me how to inject into my leg with a one inch needle every twenty one days Will B12 injections and nasal spray really recover my severe deficiency? : r/B12_Deficiency

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