You might have something else going on as well (co-morbidity is a common thing), but this could just be sensitivity in general. I think we can all get upset about things going wrong, but we are all triggered by different kinds of things. What kinds of things might these be for you, as an example? Personally I can be extremely sensitive myself. I'll wake up in the night upset about something someone said to me (whether it be a family member, acquaintance, coworker, whatever), sometimes a recent thing, or something months or even years in the past. I had to quit Facebook, Quora, and other online forums because of what others said that got to me. That hasn't yet happened here which is nice, but I'm always perpetually ready for people to say something that sets me off. Sometimes those things are the "last straw" -- I'm fine on the surface and things seem to be going really well, but I feel I've worked hard to make everything go in sync like that, so if something interferes with that then it's enough to get me worked up...if something does go wrong it feels like my sense of order is falling apart, and I can become shaken by it.