CPAP: what a wonderful/horrible invention!
Wonderful: I am sleeping and dreaming! I wake up refreshed! I feel "good". I am resting.
Horrible: It's like wrestling with the devil. My wife calls me "Darth Vader".
It has already made me realize how bad my situation was, that is, I am getting rested up to the point to see how tired I really am. I am now out of the "numb" stage of fatique; I am now in the painful rest recovery stage.
All in all, a good thing.