Ouch!

So I just hit my head on my car door coming back from lunch. (Don't ask) So far no blood but I feel a little out of it and want to throw up. I'm sitting here with an ice pack on my head, not working, because all the nurses yelled at me and told me I had to. Do you think I can go home? No, I get to sit here for the next 6 hours. Why does this shit always happen to me?