Y do i suffer pressure on bridge of nose n between eyebrows mainly around my cycle ?? ct all clear..

Catamenial sinusitis: Oddly enough, since the symptoms appear around the same time with respect to your cycle, & presumably go away in between, the CT scan can be negative especially if not having symptoms (CT scan only show fixed anatomical defects). A condition called catamenial sinusitis mimics your condition. Speak to your doctor or an Endocrinologist for more info.