I keep getting a sharp pain in my head. Its been going on for like 8hrs, I haven't been able to sleep all night. It happens every 5 secs to every 2 minutes. It is the pain that some people get on one side of their head and then it is gone. But mine is constantly staying. It hurts in my heard right above my eye, then it moves still in my head but lowers to my jawline. Should I take aspirin or go straight to emergency room?