I think we do feel everything more acutely than 'normal' people, although it's hard to compare experiences because we don't know any different.

I also think a lot of how we react to life events depends on the type of personality we have. Some of us are indeed oversensitive to all sorts of stimuli, both positive and negative, and we're going to take the bad things harder than someone who's less high-strung. I know I've had mood episodes triggered by outside influences, and they're every bit as severe as the ones that come seemingly out of nowhere.

Best thing I can say to the OP is that her reaction to what happened is VERY understandable, and not to worry too much about whether it will lead to a mood episode. Not all dark clouds are storms.