I feel the same sometimes, not with the dreams and shit, but getting very irritable and frustrated over the stupidiest things when trying to get to sleep, and generally just doing anything, I can get very irritated and angry, but as there are no outlets there's nothing to do.

When something's not going your way and not working and all you want to do with it is smash it to fuck and punch the shit out of it, but it's too small and fidly to punch the fuck out of, that's when things get tense, when there isn't an outlet for the rage that's built up inside.