Yeah, I've had that too. Very strange, very vivid dreams. A couple of nights ago I had a dream that my parents purchased a time share in some tropical area, but the only restaurant we ate at was some chain diner, like Denny's. O.o
Whew...so its not just me. Thank Goodness! I have been having very strange dreams as of late. A couple have made me wake up and sit up for a little while.
I have a friend that is convinced that everything is caused by "the apnea"
This might be a case where it actually is. Maybe your weight loss has made your sleep disruptions less, thus allowing you more chance to enter and stay in deep sleep. Therefore you have a longer/better chance of dreaming?
*Le sigh* The more I lose, the more sex dreams I have. And the more intense and "real" they get. Last night's featured a old friend/crush that I haven't seen in forever. Maybe a sign of good things to come?