I have had a dull, constant pain in the back of my head, on the right side just above my neck. It is sensitive to the touch and feels like I hit my head at some point but I didn t. I ve had this for a couple of months. Should I be concerned? Should I see my dr.? I m 41, 5 7 , 185lb female, non-smoker. Only on-going medical issues are hypo-thyroidism and pernicious anemia which are under control.