Headache when I wake up, goes away when I get up!

Anyone else have this? Every morning I am awoke (it usually starts around 3am, and I try to get back to sleep) I have a pressure type headache, hurts at the back of my head  into my ears and face. As soon as I am up and moving around it usually goes away within about 20min.  My nose also feels "full" but that too, goes away after Im up moving ....wondering if its chiari or syrinx related? I havent had surgery yet...
Also, I cant decide if all the daytime face/sinus pressure headaches are from sinuses, or Chiari! Advil cold and sinus takes the headache and pressure away..so IDK! I just hate taking that daily too!  Just some questions I have been pondering..
Sorry I have been MIA, 2013 has not been good so far!!
Hugs
Mazie

[selmaS]

  If u have a syrinx, it could very well be the position u sleep in...u may be laying too flat and u r developing pressure  as a result...u could also be  dealing with related conditions like ICP...POTS.....it could be sinus related as well...so many of us do have this,.

To start I would try elevating the head of ur bed....see if that helps at all....and talk with ur Dr about this.