This is something I've thought about a lot. In fact, it's been how I've seen myself pretty much forever... it's only been recently that I've seriously thought about the possibility of Asperger's.
For years, my theory has been that "shyness" or "introversion" is poorly understood, or perhaps even nonexistent. I don't hate socialization, because I love talking to and being with the few people who can talk about my interests on my level. I can get really talkative, given the rare opportunities. The reason for being socially withdrawn is because people like that are so difficult to find. At least, that's what I've been telling myself all this time. Lately, I'm not so sure. There might be more to me than mere shyness, so that's why I've been investigating Asperger's and the autistic spectrum. There's a lot of things... my clumsiness, my manner of processing information, etc., that's got me wondering. I feel clueless as to how to move on in the world and life, and that's what's got me curious about my true nature. I want to learn if I can manage and work around these weaknesses.