You should be schizophrenic at the very least; different situation require different aspects of your personality.
I think we're all Obsessive Compulsive to one degree or another. Maybe our compulsions aren't about keeping every line straight, maybe they're just about getting laid or drunk. But we do obsess about things. Otherwise things like Twitter, Facebook or MySpace wouldn't exist and we wouldn't have blogs.
The line between autism and genius is often so blurry as to be indistinguishable from one another. And where is creativity and invention without going manic every now and then. And a good bout of depression can help you look at things in a different light and keep moving.
The ideal is laid out in science fiction with the cold, hyper-intelligent aliens who can solve every problem faster than our fastest computers. And yet they're insane too. Pure logic ignores compassion, which is both the roadblock and the reward for being crazy humans.
Love is insane, but wonderful. Family... heck, everyone's family is insane, but without them we wouldn't be here. Art, what the hell is that all about? And yet, art is part of human culture and without it life is hollow and empty.
The very spark of creation is buried in our insanity. I'm a firm believer in scientific practice, but the point of scientific method is to try something and replicate the results. Most of science is just redoing experiments to make sure you got it right the first time.
But, where does logic and reason tell us to try in the first place? If the odds are it's not possible, why even bother? Because we're insane, that's why. Which is why we have the Internet, Wikipedia, and, well, this place.
My logical argument here is insane in itself. I think one of the things that puts me into a mental block about getting things done is, well, looking at everything that needs to get done. If we truly examine our motivations and our abilities, we'll probably drive ourselves to a state of dysfunction.
So, embrace your insanity, so long as you keep getting up in the morning and explore new things and new ideas and don't stick to beans and rice.