I hadn't considered that the B vitamins could be contributing...
Only taking 1 in the morning -- and only started taking them after the initial stench (thiamine is apparently supposed to help metabolize acetaldehyde -- which I suspect is responsible for some of the problem, fatty acid ethyl esters being responsible for the rest).
I will try dropping the vitamins.
Thanks for the great thought Mizzuno and KMT!!!
(And thank you Mizzuno for being willing to sit next to me.)