3 weeks back I took half a pill of AOR's Hydroxy B12, and since then have had troubling symptoms: Feet freezing all day. Skin dry, fingertips cracking Rashes on forehead A feeling of histamine releasing all over my skin, kind of like niacin Feeling constant adrenaline and brain fog I'd previously had negative histamine like reactions to ANY and ALL forms of Folate and Methyl B12. I thought I'd try Hydroxy because many people have written about how safe it is. Not so for me, these side-effects have been longer lasting and worse than previous forms of B12 for me. Does anyone have any idea what I can take / try to reduce the symptoms Hydroxy B12 caused in me? Many thanks. I'm out of ideas.