I am having the same problem.
Mine started a little over a month ago.
I sat on my bed and bent down on my left side and had a sharp pain on the left side top part of my head. It hurt for a few seconds.
Then the next day it did it again.
Now it does it several times a day. It can last for a few seconds to a few minutes.
It also moves around. Sometimes its on the right side of my head, sometimes it moves to behind my ear, or into my jaws.
I have also been feeling kind of light headed but not so bad. I just feel like I need to not move for a minute and hold onto something till the feeling passes.
I went to the doctor who took my blood pressure and temp, then looked into my eyes and said its stress and put me on fioricet (spelling might be off).
It does not help my head pains though. And the pains are not headaches they are completely different feelings.
I have an apt with a different doctor on march 1st. I hope that they try to figure it out.
Oh I also had a ton of pressure in my head, I felt like there wasn't enough room in there and that my head would pop like a balloon that was over inflated.
Also about two weeks ago when in bed I would wake up at night and could feel my pulse in the back of my head. And the feeling and sound was so loud like someone had the bass and volume of their stereo on the loudest setting and it was beating in my head.
I am glad I am not alone..