I don't really know that much about it but I have had some experiences similar. I used to think my cupboards were moving.My mum said I fell off her bed at 5 months old....and once I thought I saw a hand come from the bottom of the bed to grab me..but I think it was in REM sleep stage.I was also cross eyed as a baby but it corrected itself. + have a condition called intracranial hypertension where the fluid gets caught behind my eyes...lumbar puncture fixes that..but unattended can cause blindness and color blindness for me.Other things for others. I also get a sound in my head when I try and sleep that sounds like a ferry engine...kind regards JoeyJulia.