Misophonia, literally "hatred of sound", is a purported disorder in which negative emotions, thoughts, and physical reactions are triggered by specific sounds. It is also called "soft sound sensitivity syndrome," "select sound sensitivity syndrome" ("4S"), "decreased sound tolerance", and "sound-rage". Misophonia is not recognized as a disorder by standard diagnostic criteria, and there is no evidence-based research on its prevalence or treatment.
I am POSITIVE that I have this. This is probably why going to a cube from an office was harder for me than most others. This is probably why I don't like most of the people around me... because I have to listen to their chewing and slurping and loud typing and crunching ALL DAY and it drives me CRAZY. Seriously... not an exaggeration, I get bad feelings towards these people even though I know it is irrational. That is why I am totally sure that I have this "brain disorder". This is why I have to have my headphones on ALL day and even then I can sometimes hear it over my headphones. I just recently found out about this, but as soon as my friend (who also has it) explained it to me, I knew I had it.
I have a hard time in movie theaters if it isn't quite, I get super mad. If we are watching tv together, or a movie... especially if I have never seen it before... don't you dare chew on something loud by me or I will get angry. It is mostly food related for me... but other sounds affect me too.
It is actually more common than you think. I have talked to other people that are just like me. So it's good to know I'm not a lone. I'm not crazy. I just have this thing.... sorry.