Never had my hearing tested but I can say anecdotally that many times I have been at work listening to music from my computer and had people walk up to me to talk to, which leads to me saying “let me pause my music” and them to respond “what music?” I often have the volume on everything that has controllable volume as low as I can possibly set it.

I very often hear things no one else does, to the point people think I’m insane because I’m absolutely hearing it but no one else can so they don’t believe me.