Same here. I’ve had my AirPods Pro for close to a year now and used them very sparingly for exactly this discomfort and ringing that I get after listening to them, each time hoping it wouldn’t happen again. It always did though.
They aren’t enjoyable to listen to. I’d go as far as saying that they can become painful to listen to during longer sessions. I can’t pinpoint what it is, but after some time I get the ringing and my head starts feeling like it’s going to explode. Noise cancelling isn’t on, it happens even with transparency mode. This feeling lasts for around half an hour after taking them off. The ringing lasts even longer.
The sound is too bright for my liking and even the Headphone Accommodation setting didn’t allow enough of a reduction.
They are too loud for my liking as well. Volumes over 20% are too loud.
Wired EarPods sound much more enjoyable to me, they are very balanced. Maybe it’s the seal the AirPods Pro create that I’m somehow sensitive to. I tried getting accommodated to it, but couldn’t during the two weeks after initially getting them.
I don’t want to say that there is some fundamental design flaw with them, in the end, nothing is one-size-fits-all. But since I never experienced anything like this with other wireless in-ear headphones, I’m a bit puzzled.
Btw, I did get a replacement pair just to be sure mine weren’t faulty, but the new ones are the same.