It is difficult to even discuss theses things but we have to confront them if we have any hope of being able to take a reasonable position and stick by it. It is probably safe to say that every normal person has a painful reaction to seeing others in pain, or even thinking about others in pain, but what we do with that ability to feel that pain has to be handled prudently. We can't collapse in despair at the pain of the human condition, and yet it's also pretty clear that we should not ignore it, because we often can't - the pain of others will often impact us even if we try to love in a cave.
The whole issue has to be handled intelligently based on "the way things are"