migraine after b12 injection

migraine after b12 injection I've had a 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 As per my latest article,

Name: migraine after b12 injection I've had a 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 As per my latest article,
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Elsevier Health Sciences

These options are usually best suited for people whose deficiency comes from not getting enough B12 in their diet, a common issue for vegans and vegetarians

M., Riepma, K

Thiamin is necessary to maintain normal function in the nervous system while playing a part in the chain of reactions that provides energy for the body