Umm...yeah, I'm like that to some degree. I don't seem to have a wide range of emotions like most people. If something's bothering me, I find it hard to get on with it and stay positive. Instead, it will get me down, even if it's a relatively small thing. Most people tend to be able to at least fake feeling good, even if a lot of things are going on in their life. I tend to either feel great or terrible...there aren't many in-between states.
But in other areas, I'm not a black and white thinker. In fact, I often get annoyed by people who believe that everything has be either this or that, with no shades of grey.
_________________
"Never try to teach a pig to sing. It wastes your time and annoys the pig."