Mine is a pretty tame example: I never minded the smell of garlic was fine around it… but I took a job for DHL and they had these large tubs of garlic for horses that had to go out to people. There were about 10 of them coming down the belt.
Now I can’t stand it. I’m just reminded of how strong that smell was I was actually gagging. The tubs were heavy, the handles were feedble. Some of the tubs were damaged so I got a bit on me.
I stunk of it for the rest of the shift. It wasn’t even a normal garlic smell it was just so powerful and nauseating.
Growing up, whenever I was sick with an upset stomach, my mom would give me 7up to drink. I dunno, I guess she figured the carbonation would help? Now decades later 7up still reminds me of the taste of vomit.
Mostly I figured this was done because whatever they use to make the lemon/lime flavor in sprite/7up/etc doesn’t seem to digest all that quickly, comparatively…
…so when you inevitably vomit again, it doesn’t taste QUITE as awful or burn your throat quite as bad because it’s at least LEMONY bile and stomach acid instead of just pure bile and stomach acid.
The sugar is “neutral” (7) and potentially offsets the pH of the hydrochloric acid in your gut, too.
Puking too much pure stomach acid for too long and not rinsing your mouth out afterwards can cause rapid tooth decay, I’m told.