My eyes teared up here at work reading your post above – thank you.
It is so sad; I feel like tinnitus gave me tinnitus. And the first two sounds I had (that I masked with music during sleep) wasn't even that bad, not affecting me too much during the day. My hearing was fine also, but now that left ear has some hearing loss, and slight ear pain and constant slight ear fullness. The high-pitch sound also oscillate up in pitch and some sounds/frequencies feel uncomfortable in the ear and sometimes it's also like some sounds makes it so I can feel the eardrum move. So many symptoms, it's crazy. Luckily the volume of the tinnitus sound isn't that loud, but it still feels piercing like "lasers in the head" and all those symptoms together truly makes it hard to habituate.
I also hear you on the devices and listening to music. Some months before onset I had purchased this dedicated DAC for improving music listening at home – it does make a huge difference. Now I want to forget everything that has to do with hi-fi.
I also like to produce music and very much appreciate the intricacy and detail in sound and music.
Luckily I'm okay with the sound from an acoustic guitar and it's not hopeless to keep working with software synths and stuff on the computer, but it sure isn't the same anymore, having an ear that one is constantly aware of and that hears sound slightly different – it's simply not as comfortable to listen to music anymore, especially whooshing strings.
Sorry for being longwinded about my own crap – didn't want to hijack the thread.
Wish you all the best too! Let's hope we all will get better and/or that a cure or at least relief will come as soon as possible.