is it like almost the top of your head, like just below the crown of you head? And the slight touching of it can feel like almost like sandpaper or as if you scratched your head vigorously and you are feeling the after effects of it? It can be related with a tension/or pressure headache.. happens to you around the time of a storm or change in weather/temprature? Or maybe it's caused by stressing and worrying?
I have noticed lately that it seems to be joined with congesstion and/or allergies like hay fever
does that sound familiar to your symptoms? Can you feel the pain when moving the base of your hair at the area, and kinda feel sharper with that kinda pain? Do you occassionally get slight goose bumbs before or during the time of having these headaches? And do they come and go through out the year kinda thing?
It may even be caused by over sleeping..