l carnitine and exercise

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 https://lookaside.instagram.com/seo/google_widget/crawler/?media_id=3974583633579002654 Amount:20mg Vitamine C Carnitine is crafted with high Its consistent structure supports controlled experimental design and comparative studies within endocrine research models

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