[DWAIN]

Hello All,
I hope I find you well and Happy.
I am searching for help with a condition I have not been able to resolve.
I wake up most mornings with a strange sensations in my head. It is a bit hard to describe, but it is like my head is accelerating to the point of several G's. It feels as if it is racing away, almost like reaching the bottom or top of a big dipper. It only affects my head/brain and last form 5 to 10 seconds. I have to hold the bed sheet and try to bring myself down, or land my head. It occasionally wakes me up in the night
It happens occasiopnally during the day, though to a milder extent.
I had a brain scan as I was worried I had brain cancer. My father died of this at age 53, I am 51. It came back negative, though I do have some sinusitis.
I would be grateful if somebody could point me in the right direction.
Thanks