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headache after vitamin b12 injection I've had a migraine since Sept 4th. I took a that day (prescribed by my doctor) so I'm wondering if it's related or coincidence. I'm scared to take another one Feeling worse after B12 Injection:
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Be physically active
Endocrine Journal , 59(7), 529538

Providers need to guarantee such diagnostic linkages are uniform in both their EHR and claim forms, or they risk raising payer objections
McGraw-Hill Education
