Do I have some disorder?? My behavior supposedly does not fit the social norms? ?

You are an intellectual. That is a personality style, not a disorder. You march to the beat of a different drummer.There is nothing wrong with that .As long as it is working for you, be yourself.You may want to research personality types to understand yourself and others better.Tell them that learning is fun for you! If they can't understand that, it's their problem, not yours.