I personally tend to have a lot of underlying "social abnormality," including being a chronic grouch, but not laughing at stuff is actually not a problem I have

I personally tend to have a lot of underlying "social abnormality," including being a chronic grouch, but not laughing at stuff is actually not a problem I have, surprisingly enough. Do you think this is related to some other aspect(s) of your personality? If so, what? (if you don't mind sharing)