I don’t want to make this a political post. I was just reading this news story and this paragraph sounded like it was pulled straight from this forum:
The symptoms, which first appeared in late 2016 in Havana, include: “dizziness, headaches, tinnitus, fatigue, cognitive issues, visual problems, ear complaints and hearing loss, and difficulty sleeping.”
Sounds completely relevant to the forum, Anna.
Yes I had seen this story a while back but never thought about it in this context.
24 people, simultaneously?!! That’s completely bonkers!! If you don’t mind me being so bold but that would probably rule out a migraine root cause in this case! 
How on earth did that happen, have they got to the bottom of it?! Foul play?
I’ve heard that it might be possible to injure someone’s inner ear with sub-bass low frequency sound?
I don’t know but it would be interesting if the 24 all went to different ENTs or neuro-otologists (without revealing anything about where they had worked) to see how many would be given a diagnosis of VM or MAV!
In any case if that was intentional, that would be a really sick thing to do, knowing that the people might be essentially disabled for years to come … awful.
This is sad. My first thought was I wish it had been on the job for me, then I’d get benefits.