Visualization/Awareness, help please

[xane]

I've been using a holosync set called dive and immersion (haven't gotten to immersion yet) and I always have the same problem.  While listening I keep wanting to check the status of my body. "is it asleep yet," I ask myself and I think this keeps ruining it for me.  Even more frustrating is the instant I begin to see things in my mind (like the beginning of a story unfolding) I'm jerked back to my body checking to see if it's asleep.  Then I give up for the day in frustration (haven't felt any vibrations yet).
Also is it common to feel only parts of your body asleep? (my hands/arms before anything else in my case).