Just a thought (for what its worth.) I felt like I was moving and wasn't (seated in car and car was stopped.) Reg. MD says cervical injuries are able to produce multitude of symptoms. I was also experiencing insominia. His answer was a valium rx. It is good for 3 of my symptoms: muscle spasms, insominia and balance and coordination issues. 2 days later, at least I'm sleeping better. We'll see. (I was a bit concerned about the rx at first, didn't know all of it's applications.) Good luck - Deb F.