This is quite a common trait of aspergers. I have been diognosed with aspergers since a young age and I take things literally sometimes. I find it irritating sometimes (like in social situations which i'm not really that good at anyway) Then I often get angry with myself and I just know that the anger will be followed by depression (overstimulation of one emotion followed by a crash) I am currently working on better ways of coping with this so I can carry on as normal instead of shutting the world out when I get depressed which is what I normally do.