Used to get dreams where I'd still be at work which was really strange, not weird, just as if I was still there. I found I'd come home after a nightshift and go straight to bed - that was causing it. Now I always make sure I do something else, watch TV etc for an hour or so to relax.
Only other strange thing I get in a dream is the feeling I've tripped over, and a "shock" through my body lol....strange, nothing bad about it though.