Metallica drummer Lars Ulrich has revealed he’s suffering from tinnitus.

Talking to CNN, Ulrich says: “It’s this constant ringing in the ears. It never sort of goes away. It never just stops.”

He first noticed the problem during the band’s 1988 tour: “I would fall asleep often with the television on, and I would wake up in the middle of the night to go turn the TV off. Except it wasn’t actually on. When I realized that I was doing that frequently, actually getting up to turn the TV off that was not on to begin with, I realized that maybe I had some issues.”