I'm "fortunate" that at 39 I can still (barely)  hear the mosquito alarms. I was always really good at hearing the flyback transformers as a kid and would often be the only person in a room who knew that a TV was on - and be unable to concentrate on anything because of the noise.,(reply>), My grandparents had those pest repellers you plug into the wall, supposed to chase off mice with high pitch noise. As a teen i could hear them.,(reply>), @ThePixel1983 in my case yes. Cheap phone chargers, CRT screens, the cooling coil in my 12v electric cooler.  Also people who smack when they eat, or moist mouth noises from radio or TV presenters cause me distress.,(reply>), Did you also hear Phone chargers and other (cheap) transformers?