Oh dont worry at all. I also I cant hear this frequency anymore and I am 19 right now mainly because when I was young, I always got ear infections and water behind my ear drums so I lost some of my hearing but mostly in the right ear which today makes clicking sounds everytime I swallow my saliva and I also have Tinnitus which is a static ring sound, kinda like the ringing sound you hear in videogames after a bomb explodes near the player.