It started in Feb for me. Panicked that I would lose my class 1 at my next audiogram. After taking my head out of the sand, I went to see my doc who then referred me to an ENT chap. I did an audiogram that came back as good as if I was 18 (even though all I could hear in the booth initially was my tinnitus and heart beat!!). I have had an MRI scan to make sure nothing untoward is causing it, but I am not too worried about the results.
I now have a new headset for the 757 (one of the noisier flightdecks I've been on), I now have new headphones for my I-pod (PNR) so I now keep vol below 50%, I also ensure that I wear suitable ear defenders when doing the walk around.
For me, I can live with the tinnitus, so long as I can keep my medical. The thought of doing another job/retraining did not appeal.
Regards
GBD