still tired after vitamin b12 injections Is it normal to feel injection? why do i feel tired

B12 supports methylation, a metabolic process which has many actions in the body but helps to produce energy

Biologically they are the same in terms of result just that they differ in terms of method of absorption

Signs of this may include the following symptoms: tingling, feeling cold in the hands and feet, weakness and rapid fatigue, and difficulty concentrating

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Who to refer: Patients: with symptoms suggestive of either a spinal cord lesion (subacute combined degeneration or peripheral neuropathy) or visual (optic neuropathy) same day emergency admission not responding haematologically to B12 replacement therapy (where folate and iron stores have been checked and are normal) with suspected malabsorption or disease of the terminal ileum should be referred to Gastroenterology with neurological symptoms should be discussed with Neurology if advice required