Pernicious Anaemia Society

Headaches after B12 loading dose

Hi all,

I have just finished a course of 10 B12 injections - the difference that I have felt has been amazing, however after stopping them I have woken up every day with the most excruciating headaches. I was just wondering whether anyone else has found this or whether it is just a coincidence?

Thanks in advance for any advice!


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