So randomly if i sit up from a couch/bed or from laying down i will feel a very odd sensation, I can feel my legs/arms moving but it dosent really "feel" like im actually controlling them, as if im just there for the "ride" is the closest i can put it. Weird.
google "epley maneuver" or epley's maneuver and it might be easily cured...it helps many people ..it helped me a bit if you want it cured that is
i mean sometimes it can be fun. like if its JUST me in the house i can sometimes go as far as to control my movements, but I the same "disconnected" feeling from my body.
a hallpike test can be done by yourself to determine if its simply vertigo http://www.webmd.com/brain/dix-hallpike-test-for-vertigo-15884