I do experience the twitching thing occassionally, but not the rest of what you mentioned.
The worst kind of dream for me is the one where you "remember" that all this time you've been not attending one of your classes, and when you run to get to class, you get lost in your own school/college. Then when you finally manage to get there, and be late for a major exam, you start taking it, but none of it is making sense and you are falling asleep at your desk. Then you wake up in a state of panic, rushing to double-check your course schedule.
But not before realizing you're not wearing any pants. Actually this would redeem any accumulated crappiness thus far
