I once detected an old CRT TV left on mute in carehome from other end of building, also I used to hum in time with high pitch of my BBC Micro model B Computer (Which I still miss and❤️)I had when I was a kid, when loading tapes, and learning to count in Hex while waiting for games like Repton Elite Eagile Empire etc or my own simple Programs to load, and my Dad once bought a cat high Pitched audio repellent, that I could not only hear gave me a really bad headache that goes away when the sound stops, which funnily enough I feel on my forehead which is in the same place where I had an accident at middle school and the point of pencil went strait in to my forehead quite deeply making it bleed and a tiny hole, wonder if there is a connection with size of High frequency wave and sensitive site of injury I had as a kid?<br><br>Also I get ASMR which unlike some people say is not some weird fetish, although might be to some people I guess, but certain sounds cause what feels like my whole brain to tingle like an epileptic shock but is a pleasant feeling, I don't know why, maybe Science can explain it someday, that is if they ever take it seriously, because something is happening in body regarding ASMR almost like sound empathy with person?<br><br>I worry that I will lose my ability to hear these sounds as I am 37 years old now, although I got a headache a few years ago when turned out a Person put Ultrasonic Audio Repellent in there garden facing footpath at end of my road and I still felt that.