The symptoms you list are remarkably similar to being strangled/smothered. It's simply oxygen deprivation to the brain. It's natural to panic. See waterboarding for an extreme example.
Besides that, what about the psychological effects? I firmly believe that this prolonged mask-wearing is part of a psyop. Imagine the generations of kids in their formative years who spent the last two years staring at people in masks- we communicate with our face more than our words. These kids aren't learning this as well as they should be. Going to create a generation of spergs who can't read facial expressions. This might not sound like a huge deal, but it is.
Another effect I noticed in the first weeks of mask mandate was the stress I felt knowing there would be confrontation which I don't handle well. At a gas station the cashier started literally screaming at me. I was so shocked and at first I tried reasoning with him but gave up and screamed back. Ended with telling him eff you and your effing mother. Went down the street to another gas station where the owner wore no mask and didn't care.
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