Bad genes and rock’n’roll.
(Before your time) There was a time I was walking toward the Hot Tuna concert, ear ringing deadly from the night before, and stopped 300 feet away from the venue and the racket. Do I really need more of this? I suspect by that time I had already scrambled some nerves, they just take time to fade-out. (I doubt you were “fine” at 36, it just hadn’t caught-up yet.)
My father was never into r’n’r, not a loud life, and he has my curve 24 years more advanced.
And yes the effects of drugs on eyes and ears is rarely mentioned. I was given Prednisone for severe back trouble, cataracts went from ‘none’ to BAD that year. Do you know how much aspirin I’ve taken over the years?? And some of my antibiotics, childhood and old-man, are ototoxic… nobody tells you. (And there may be little alternative.)