Are you pms'ing? I would become ULTRA sensitive to sounds that a week later didnt bother me at all. Like i used to sit by a guy who i think had a mild form of Tourrette's and listened to headphones. He would sing and bop and tic along to the music, but during my pms week, it would drive me nuts. The rest of the time, i would sing along with him. I would make other people crazy with my talking out loud to myself. Btw, I am also known for yelling at people for breathing too loud, so i am totally on your side.