I hit my head just over 72 hours ago. I have a slight headache, feels like a sinus pressure headache. And now my pupils are pulsating, getting bigger and smaller at the same time. I am feeling very tired. When the incident first happened my words were jumbled but I remembered everything & had no memory loss. I experienced neck pain over the next 2 days. The next is much better but I am now feeling waves of dizziness or light headed, and warm. I should note I am a carrier of the Factor V Leiden gene. I am a 33 year old female. I have not been to a doctor, should I go to the ER now?