I have had significant pressure in my head for about two months...I have taken aspirin, advil, cold medicine, sinue medicine...nothing seems to help, I have not had any head injury, this came on all of a sudden. It seems worse later in the day until I go to sleep, when I wake up the pressure is gone but returns by mid moring and continues until I go to sleep. I am having a hard time sleeping on my back or right side, I can get a little relief on my left side.