DD is 19. She fell over on the ice today and skinned her arm. When she showed it to me I felt a fluttery sensation in my ... I was going to say abdomen but really it's in I guess my womb/ladyparts. I've noticed before that I feel it when I'm in a situation where I perceive I'm in danger, but not when I've actually injured myself. I also feel it when one of my kids injures themselves. That doesn't happen often now, because they're older so they don't fall over very much, which is why I noticed it today, because it's been a while since I felt it.
I'm guessing there's some kind of evolutionary mechanism /biological imperative going on here, but asking the internet (which admittedly is monumentally shit these days) isn't giving me coherent answers.
Does anyone else experience this and/or know what causes it?