I am hoping someone out there can give me some guidance. I tried to post this in another thread but not sure if it worked. I am not tech savvy.

Any and all B12 supplements (methyl, cyan, hdroxo, etc,) make me terribly anxious, scattered, stressed. Heart palpitations. I loose weight. My bowels shut down. I could go on and on. But my body is begging me to stop taking these B12 vitamins. I've tried every imaginable dose, and for short and long periods of time. Many different brands.

Could it be what i hear about ......my body having a screwed of methylation factor gene, or something like that? Does food based B12 depend of a proper methylation process going on in body?

Could someone please offer why my body "might be" reacting this way?

Should I just start eating foods high in B12? (most of these have high iron as well, shutting my bowels down).

Any help is greatly appreciated. I'm exhausted from this and my B12 levels are low. Intrinsic factor is fine.

THanks for support.