Actually, I do this often - I often think about why something is bothering me or why a particular incident hurt me or offended me. Maybe because I'm pretty introspective, I literally don't know how to put off things that bother me because they are ever present in my mind.

And I do assume that it's fixable because, at one point, I was not bothered or unhappy or depressed. So I assume that whatever it is that's upsetting me, I can find out the cause, fix it, and return to being ok.