Numbness

[Jakeb203]

Does the masked format seem to have any influence on it?

Masked seems to contribute less to the numbness. For ultrasonic though, every time I turn on my ears feel like it's on an airplane, the feeling you get during take off/landing that you have to open your jaws wide open. I do that less often now but the happened much more often when I first started listening. There was a period of time where I got numbness on the left hand which disappeared after a while. Now it's on the right side of my head. Could it be a problem of sleeping position? It feels like my face / head got covered by something. They have less sensitivity