can you feel tired after b12 injection Why do I worse a injection? tired after vitamin b12 injection

Seek urgent same-day assessment or call 999 for emergency care if experiencing: Severe chest pain Severe shortness of breath Fainting or collapse Acute or rapidly worsening neurological deficits (such as new limb weakness, sudden gait disturbance, or bladder/bowel dysfunction) Persistent or worsening anaemia symptoms despite treatmentincluding breathlessness, chest discomfort, palpitations, or extreme fatigueshould trigger medical review

Please consult your doctor about this

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The early signs you notice after starting B12 treatment indicate that your body is responding to the therapy

[6] Species Differences Beta-3-adrenergic-receptor expression and regulation are not identical in rodents and humans