I used to have them every single night, for years. I got sick of it and finally managed to make it stop. The lucid dreams--"waking up" during a dream-- are OK (often truely blissful!) if you keep it going as a dream (if you look too closely the dream disappears and you are left in the state that people call OBE; if you get caught up in the dream it turns back into a normal non-lucid dream). What I really got sick of was every time as I would fall asleep, a part of my mind stayed "awake" and brought on the "OBE" state which I usually found very unpleasant.
Lately I have been wondering about something. [crazy alert] Since then (as far as I remember) I always have a song or tune running through my mind, all the time except when I am concentrating on something else like working, talking, reading, etc. If I am just sitting around, or taking a walk, it is there, and I have to deliberately concentrate on something else to turn it off. This drives me crazy. What I am wondering is, is this the way I managed to stop the "OBE" stuff? I wonder if this constant mental process is keeping that mental state at bay... Or could it be a form of OCD? Other than the mental jukebox I have no other issues of that kind [/crazy alert].