I had to do a hearing test for my air force pilot selection (which i failed by the way) and in it i was listening really hard for the sounds, and every now and then i'd hear like a distant beep and i'd often hear beeps, and i wasn't certain of whether they were beeps or in my head, so i just clicked the button whenever i possibly heard something.

Anyway, now i often hear sounds in my head, and i sometimes hear things and sometimes not, and it seems as if i am much more aware of my bilateral mild hearing loss, and much "deafer" than i was, even though I never thought i was hard of hearing before, but now I often don't hear things.