*hearing a high pitch frequency 24/7?*

[Average Joe]

Originally Posted by Lee BURTON

The noise i hear is like someone said earlier, like a diesel truck outside, or a machine digging underground, its a real sub bass pulse that i feel through my body.
I said before 2:00 GMT i'm in bed and have felt this for a while now, the green box thing doesn't suit my own and friends around where i live, its more deeper/lower and pulses.

The ultrasonic cat deterrents are high pitched pulses. We're not supposed to hear them but we do (from personal experience).

I'm sure that I read somewhere about something that gives low frequency pulses whilst I was researching the cat deterrants, but I can't remember what or where.

It is very possible that it could have a mundane explanation like the high pitched noises.