Those all sound like some form of fear to me. 1 sounds like fear of incompetence: You don't know how to solve the problem, but that's just because "you aren't really thinking about it", so you protect yourself from the idea that you might actually be clueless. #2 happens to me a lot, and it's being afraid that resting/sleeping will prevent you from getting work done (which may be true, but if a nap is going to make things late, it's already too late)