But if you’ve been exposed anx had symptoms all your life, and everyone has, it’s just “normal”. Or you develop automatic habits to avoid exposure to the contaminants that outsiders don’t. Like not putting your wallet on the dresser after the government has been in.
When you haven’t, you notice them.
Plus, what the Cuban people discuss with the authorities is a lot different than what foreigners (and especially foreign government officials) talk to their own people about. Maybe the embassy contracted with someone who used a different formulation.
There could be a large combination of factors at play. Maybe it combined with something else to amplify the effect – therefore people not in the buildings didn’t get hit as hard.
Or maybe it was sonic. Maybe everybody is spying so hard on everybody else that all the signals are causing feedback, but nobody wants to admit to it.