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Besides, taking vitamin B12 right before bed can have a negative impact on your sleep due to potential side effects such as headache, anxiety, nausea, and vomiting
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Below is a clinicians view of why it happens, what counts as normal, and the warning signs that mean you should stop waiting it out and speak to a doctor
Does vitamin B12 injection dosage vary based on deficiency levels
If you do notice any reaction at the injection site (such as warmth or a small lump), it can help to gently apply a cool compress
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