Acetylcholine does seem to influence mast cell degranulation, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1279398/, and Huperzine A is an acetylcholinesterase inhibitor (net result is more acetylcholine).
Maybe that's it. I thought I read that someone else had a issue with it too.You might just simply be allergic to it.
Whew. So much to consider. This might be related to my problems with choline, who knows. I love a rich omelette breakfast but it raises my blood pressure and knocks me out. But that could be the fried potatoes on the side.This article indicates that an over abundance even of choline RI h foods could cause issues the platelet function and null aspirin affect.