A post from 2009 at NoiseAddicts.com allows you test at which frequency your hearing loss starts. I wish I had learned my lesson earlier than I did. I went to see Tackhead and Georgia Satellites in the same weekend (Spring 1990?). I’ve worn earplugs ever since.
The page has a bunch of frequencies ranging from 8 kHz to 22 kHz and you play each of them until you cannot hear one. I can hear 16 kHz, but not higher. How about you?