2 days ago me and my family went out to get a tree it was raining hard so I went under the shack, I dropped something and I went to pick it up.I came back up really fast because I was mad that day. But when I did I hit my head really hard on the wood shelf.After that I had a little head ache for about 5 minutes. But for the past two day I have been getting mild headaches and feel nauseas, my eyes are sensitive to bright light and all my symptoms get a little worse when I'm using the computer.should I be worried?

I would be worried enough to see a doctor.