scrat, don't forget to come back in, say, 25 more years (you're still young) and let us know how your hearing is. I've seen many old school shooters with premature deafness of varying intensities. One common diagnosis is shouting when talking. People just can't hear themselves, lack ear-larynx nervous feedback, and speak up to compensate, like a teenager will do when using headphones.
Ear damage is normally underestimated because as it's cumulative, it grows very slowly and it's not noticeable for decades. It's the opposite of "fire-burns". You'll only burn your hand once, and you'll learn the lesson. You associate it instantly, every animal learns that way.
But this is different. Like casting lead with poor ventilation, it can take months or years before you notice you're poisoned.