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However, some individuals report experiences that suggest possible associations between B12 and anxiety-like symptoms in certain contexts: High-dose supplementation : Some individuals report feeling 'overstimulated' or experiencing changes in energy levels when initiating B12 supplements

These drips deliver vitamins directly into the bloodstream, which could offer faster relief than oral supplements

Call your doctor if: The metallic taste lasts for a day or longer Its accompanied by other strange tastes or smell distortions You experience tongue numbness or trouble speaking You develop mouth sores, swelling, or increased drool/saliva You have difficulty swallowing or are drooling excessively These can indicate an allergy or nerve issue that needs medical evaluation

This is the most specific neurological symptom of B12 deficiency