I used to have something similar as a little boy when i got the fever. My dad said I would walk around like a zombie non-responsive and then i'd go back to bed. it wasn't sleep walking exactly as i fully remember the experience as i remember i was chasing the sound of my name being called. i would fluctuate to feeling tiny and everything was big to vice versa. also everything was extremely hard and i was soft or vice versa. it was ****ed up. happened up until i was about 11 whenever i got the fever. it was always the sound of my name being called that got me going and i would chase it ..lol probably not what you are referring to but i thought i'd share