dhetic
thanks for the post...most of the stuff you say describes my movements. I generally get a swaying of the head mostly towards the right then it kind of pushes ahead till i feel my neck muscles stretch as in a stretching exs. then there are my arms they move gently and finally my hands come to rest in a "blessing" position in front of my heart/ chest. yes the movements are not totally involuntary I can stop them at willbut feels easier to move them.
yes I do feel the squiggling at the base of the spine and it might rise up to the whole of the spine and vibrate intensely between the brows. or on the crown( the first time i was worried I thought I had lice in my head...lol)
there was a time when the vibrations were so intense I would actually be assured we just experienced an earthquake.
the feelings associated are hard to describe I would best put it as sinking , floating or even better just blank.yes sometimes i see blotches of colours floatingencirling each other like green and pink or purple.
I have attempted asking my guides several times but I am not yet at the niveau to communicate with my guides!!

regards
sups