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Summary: Feeling worse after a B12 injection typically reflects your body adjusting to replenished vitamin levels, triggering metabolic processes that may temporarily cause fatigue, headaches, or injection site discomfort
Digestive disturbances: Symptoms may include loss of appetite, nausea, and diarrhea
This is very important for those with severe deficiencies
Mild pain or redness at injection site
The information provided in the text on this page is for educational purposes only and does not constitute medical or other advice
If youre unsure, a quick refresher on injection techniques can be a big help
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