Hi everyone!! I haven't been on the board for quite awhile and don't know if b-12 injections have been addressed. I finally got a firm diagnosis of fibro about 2 months ago and am in the process of finding the best treatment for me. My doc has told me to get b-12 injections once a month to help my energy level. The first two shots were fine but this last one has seemed like it has caused me to have more hot flashes than usual. I am also going through menopause so am "blessed" with hot flashes anyway. Anyone out there have side effects from b-12???? Thanks for any info you have. Try to keep smiling and laugh when you can!!!