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I've had a migraine since Sept 4th. I took a B12 injection that day (prescribed by my doctor) so I'm wondering if it's related or coincidence. I'm scared to take another one Why do I feel worse after a B12 injection? CoLaz B12 Injection Services Subtly You Vitamin B12 Injection: Energy Boost and Anemia Treatment Mountainside Medical Why Do I Feel Worse After My B12 Injection? Understanding Post Injecti Oxford Origins Neurological Effects of Vitamin B12 Deficiency & More
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