Havana Syndrome | CIA Sonic Weapons or Natural Causes?

It was first reported in 2016 by U.S. and Canadian embassy staff in Havana, Cuba.
It starts with a piercing sound, one that is described as persistent, high-pitched, and very loud. It is then followed by nausea, intense vertigo, dizziness, severe ear pain, not being able to think or speak clearly, excruciating headaches, and even partial blindness.
Many victims have reported brain damage without ever sustaining a concussion.
Medical professionals indicate damage to the auditory system and in some cases the “wiring” between the eye and brain.