so ive told people, mostly friends that i dont feel happiness and their instant reaction is to assume that im sad, not that im blaming anyone, but i don't feel sad. 
i dont feel the happy emotion and the sad emotion as intensely as i feel paranoia or guilt or anger. 
the amount of emotions that rise in me while im angry or paranoid or guilty or even anxious for some reason is so high that when anyth makes me happy or sad, it does not feel as of anyth. 
like my other emotions have pushed the boundary of feelings so high that normal emotions cant reach it and hence i don't feel them.