Me too! That happens to me quite a lot, and also if there's any frustration or anger in a person's voice - even if it's two people near me arguing and I have nothing to do with it, it makes me feel stressed. (More so if I know them, because I'm likely to start worrying that it's somehow my fault.) So glad I'm not the only one, every time it happens I start beating myself up about it for being so pathetic, which just makes me feel even worse. I've been told before that I have some symptoms of social anxiety, so that might have something to do with it...