I don't don't think that's overreacting at all, I get plenty of those sensations, not only from watching TV, but reading something too. I not saying this is 100% true or the answer, but sometimes I think the reason we feel that is maybe from past emotional abuse or bullying we may have experienced ourselves at one point. It maybe just simple empathy for the unfortunate or emotional traumatic sufferers. It's human for us to feel emotional connection for each other and when something stirs up we feel for it. We want to stand up for those we feel need help.