can b12 injection cause headaches 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 Vitamin B12 Side Effects
Description
They will evaluate your medical history and weight loss goals
Age does not appear to affect the absorption of vitamin B12, ensuring consistent retention across different age groups

I have to have eye drops without preservatives, so I am hoping that mine will be ok (the b12)..I have been on Vit D two days and I amitching a bit too

Always talk to a healthcare provider about your specific situation