I've been general headache free for quite some time from the PCS, however I do have one remaining symptom of what feels like more a pressure at the brim of my nose and truthfully what is diagnosed as a 'sinus headache' more often than not. Is this sort of thing common with concussion, or is it likely to be a unrelated thing.

I'm not trying to hunt for symptoms, but more just trying to work out what I can do without aggravating the concussion issue. For instance being at work on a computer gives me sore eyes and this kind of pressure above my nose. But no real 'headache' per se. That could be concussion based, or just completely unrelated.