Sounds like a cup on my ear.

So I recently am trying to correct my hearing, but currently am just diagnosed with “mild to profound conductive loss” in my right ear, and “a small conductive component at 1kHz; mild to moderate loss 6kHz-8kHz” in my left ear. Which I’m told is just a lot of high frequency hearing loss.

Yesterday at work I was doing something that had a high pitch sound that’s similar to metal and rubber squeaking. But after a second of it starting my right ear just stopped hearing background noise and felt like someone put a cup on my ear and all I heard was waves and like a bug digging in my ear.

It was strange and I can’t describe it. First time it happened, and it continues to happen still on and off around high frequency things. What is it? Is it normal for someone with hearing loss?