anyone ever get the feeling when your running in a dream, you just can't seem to run as fast as you can?  like you start running and a few steps later your at a complete stop, you're not tired or fatigued in anyway, you just can't seem to run.

or when your fighting, its the same thing.
you cant seem to attack with your full strength, and then only a few strikes later are you completely still.

anyone else get these kind of dreams?

i had a dream i was racing my friend and i know i'm faster than his fat ass, i mean cmon i can run 3 miles in 19 minutes.
but when we start running i take a few steps and it feels like i'm running on air, no matter how much i try i can go anywhere.  then he talks shit to me and i throw a couple punches but it feels like i'm punching the air.