#1 I don't know about anyone else. I'm sure other people have experienced this but no one I've known has. I have very sensitive hearing and can pick up very high frequencies, and low frequencies. Those mosquito boxes some businesses like to set up outside to deter teens from loitering I can not only hear but feel in my nervous system and teeth. I'm in my mid 30s. Cars with very squeaky brakes is agonizing to my ears and head. Others around me may hear something, but it's amplified 10x to me.
