I hit my head 4 days ago. I am experiencing flue like symptoms. Nausea and dizziness when I stand for too long. I also had a rash breakout over my entire upper torso. The area of the trauma is now itchy on my scalp. My vision has improved. I had double vision less than 24 hours after the injury. This has improved. My face is puffy. I hit the back of my head on the left side. I do not have insurance and am wondering if I need to go to the ER. I seem to be very emotional. I only feel well when I am lying down. Could the rash have something to do with the head trauma, or could I have a virus separate from the head injury? What should be my coarse of action? I do feel better than I did a couple of days ago.