I hear everything and it drives me crazy. I call it ninja bat hearing. Sometimes I even have to put earplugs in to get some peace. I can practically hear sparrows f@rt. I reckon I got all the hearing that my brother, father and grandfather didn't get as they are/were all deaf. By the way Finy, my brother's tv has the speakers facing down and it always sounds muffled. . . .even to me.
I've just hit my 30s and though others may think that's too young to be hearing impaired, I did find that my hearing is no longer as sharp as it used to be. It's probably because as you age, you get exposed to all kinds of loud sounds and the exposure gradually affects your ability to hear.