Yep, I've always known my hearing was weird. I had a million hearing tests in elementary and high school because human voices blurred together. But I can tell the TV's on from 20 feet away even if the picture is black and the sound is off because I can hear the hum.
You are a dog
Or maybe you are a mosquito, you certainly can't be human.
The highest pitched ultrasonic mosquito ringtone that I can hear is
21.1kHzTake the mosquito ringtones hearing test