So when I'm bored, sometimes I like to look at unsolved mysteries and stuff (it's not weird, I swear), and I found a really weird one.

So in 2016, there was this thing where a bunch of people got sick (nausea, hearing loss, vertigo, nosebleeds, and focusing issues), and it was all cuz they heard a noise either in their home or hotel room.

The website I was looking at (Readers digest) has more info, so I'll put what they said.

"In December 2016, a CIA officer checked in to the American Embassy's health office in Havana suffering from nausea, headache, and dizziness. Days later, two more CIA officers reported similar ailments. By late 2018, the number grew to 26 Americans and 13 Canadians experiencing nausea, hearing loss, vertigo, nosebleeds, and focusing issues. In all the cases, victims claimed that the symptoms were triggered by a strange noise they'd heard at their homes or hotel rooms. One person said the noise was high-pitched. Another described "a beam of sound, pointed into their rooms." Some insisted that the noise more closely resembled marbles rolling along the floor."

Some people say it was the opening shots of a new cold war, but idk.

Does it prove we are living in a simulation? Maybe

Is it insanely weird and interesting? Definitely 

Also, if you wanna see the full article and more mysteries, I'll comment the link to the website.