I know nothing about this subject.

I do know however, from watching videos 15-20 years ago, then one day long after, it was just like they complained. The young ladies suffered convulsions, stuttering etc, like being retarded. I had non-chalantly taken expired Antihistamine for allergies, not thinking mcuh of the date being too vital for over the counter curd.
Some expired ingredient in the pill did the exact thing to me (40+ male) temporarily for a good 4-5 hours. Weepy sadness, brief, repetitive, uncontrolled, convulsive redundant thoughts.

And it bugs me when I read anti-vaxer stories, so i just want to add that, so I don't feel like I held out, regardless of how irrelevant my info might be medically speaking in terms of chemical reaction similarity type weirdness.