I am a very introverted Highly Sensitive Person (HSP). Note the caps. I'm not talking about merely being touchy or over-emotional, I'm talking about certain people who are actually biologically rigged to feel and react more strongly to sensory stimuli than the average population. A leisurely Googling brought me to discover about this fairly new physiological study, and it was very comforting to know that there's finally something to describe this "condition". I hope knowledge about HSP's would spread farther and wider so that family, friends, and bosses would understand that people like us aren't simply overacting.