hey man, im glad you asked that question. i too was wondering how im gonna go about 'exiting' my physical body without..moving around. uhh, while you heard the scream, were you aware of your body at the time? just out of curiosity. hearing weird things and sounds seems to be a part of the experience, like the visuals and the peculiar physical sensations. i find them very distracting, but from i hear, you are not that far away from projection. dont take my word for it tho..