yes it is a horrible affliction,
people have been known to top themselves because of it!
i got mine courtesy of years on a jackhammer and a 120mph Triumph Bonneville….
its got worse, now i avoid socialising with younger people,
eg my kids and their friends,
they tend to talk quiet and i just can`t distinguish their voice over the relentless hissssshssssshshshshssss
…”sorry i didn`t catch what you said”…. for the third time,
or like when somebody makes a humerous quip,
everyone laughs! ……. exept me, i didn`t catch it :/
its a weird sort of deafness, now i can hear the wall clock ticking away in the kitchen
[edit], a while back my factory manager asked me to walk round and listen for any air leaks in the compressed air lines,
how i laughed!!:)