I have a friend who is sort of like what you describe. He doesn't like being around people. I think he just needs to find his niche.
Also, he does abuse prescription drugs occasionally, so I think that has something to do with it. Not saying that is your case, but it could just be that the time you are spending with yourself is not "quality" time.
But I am the same way, I get to certain points where I just don't feel like being around people. I have to turn my thoughts and focus inward. More than likely you have an internal blockage of energy that you would need to discover and dislodge.
If you would like some advice on how to handle this, I'd say spend as much alone time as you can get away with without disrupting your important relationships. You will want to remove this blockage of your energy flow asap. You'll need to find some creative ways of expressing yourself once you figure out what is holding you back.
I would also be a little concerned about seeing other people as inferior. This is an ego problem I would suspect. I often had heard complaints from family and friends that I come across as being a "know it all" or "high and mighty". This almost had me depressed until I realized that the problem is, I always seem to turn conversations around to talk about myself. So in order to change that, I started listening to other people more. Really listening and making an effort to remember what they say about themselves and try to find a deeper meaning in their words.
It has helped me to become more humble and to approach all people with humility and a humble tone. This allowed others to open up more to me because I didn't cause them to immediately put up their guard. I found that I started having more interesting and meaningful conversations.
Hope that helps you some.