Did you happen to get covid or had a really heavy reaction to a inoculation around that time? That's what triggered mine; but it's actually been getting a lot better and (pure anecdotal) but I think 6 months or so of a b complex vitamin pill in the mornings have helped. Apparently, it can promote nerve repair, there's absolutely no money in studying this effect however so research is scant. I think you have very little to lose by trying it, though.

It's still there, but I routinely go weeks without noticing it now.

I know that these things can be bad, but it gets better. I have had some form of tinnitus since I was a kid. I never realized this until I talked to my wife one day and she says that no, she doesn't have a persistent beep that she can tune into.

It may have been caught be ear infections when I was a kid. I also had eardrum tubes as a kid, twice.

I don't notice it during the day or at night, though I can tune into it (like, when typing this I hear it). It's only more noticeable when I'm very tired or have a fever.

I think the brain learns to ignore/block the signal, similar to how you can be aware of breathing or hearing your heart beat, but you don't hear it all day because your brain will just not attend to it.

I became profoundly deaf in one ear as a teenager. I suffered with tinnitus for several years.

I don’t notice it at all now. It’s possible it’s still there, but I never think about it.

It’ll probably happen to you too at some point. It can’t be forced though, unfortunately.