Interesting that this thread popped up today, this morning I woke up before my alarm and was instantly fully awake. I don't remember all the details from the preceding dream but it was a fistfight that I started because my ex-gf had gotten herself a new boyfriend she wasn't satisfied with and for that reason I was visiting her. But this new guy had apparently thrown some of my socks (don't know why they were there) in the trash which enraged me and I immediately gave him a beatdown as he entered the apartment. That's when I woke up feeling like in the middle of a workout.
Fights with monsters are not all that uncommon in my dreams, either I manage to kill the monster or wake up if I lose a limb and bleed out.