Some nights when im laying down getting ready for sleep i will get this crazy head rush feeling but its not like a rush of blood, more of energy. It kinda starts in the back of my neck and goes through my head. It will happen most of the time right when i lay down for a min. Its not like it is happening seconds before i fall alseep.
I dont think there is anything medically wrong because i have had it ever since i can remember and it really only happens every few months for a few nights in a row.

Does anybody else know about this or experience it?