Feeling distress from another's physical pain

What do you feel when you see someone breaking their leg or falling in a way that makes it clear they've hurt themselves? Watch the GIF below and try to perceive how you feel about it. Before moving on to my phenomenological description of this process, try to perceive for yourself, in your own experience, how this happens. 〰 Description When I see someone getting hurt, for example, when they're falling badly, breaking their leg, or something else. I don't feel exactly the pain that the other person is probably feeling, nor the pain that I would probably feel if the situation had happened to me. In other words, I don't feel the pain from the impact they experienced when falling, nor in the same part of the body that hit the ground. Instead, I feel a bad wave running through my body from top to bottom, probably starting with the movement in my throat, and, finally, a strange tingling ending, sometimes, in my forearms. Other times, this happens on the sides of...