I get these pressure sensations that run from the roof of my mouth to the top of my head. There are also times when I get cold chills on the back of my brain. The doctors say that it is allergies that is creating the pressure and have given me allegra and beconase, but they don't do anything for the pressure. I have no other signs of allergies, such as runny or stuffy nose, itchy eyes. Has anyone felt this before?