Can they occur more focused on one side? I notice, what I think is tension, has been the typically both sides. But when I get very stressed it focuses on the left side the most to the top left segment. Pain is never severe and always dulls, but consistent.  
If I don't have some kinda pain, then I have some kinda grip around my temples and forehead. CT scan is clear and I have no other symptoms other than this going on a week during a current mental breakdown.