My pedi nurse told me to stop listening to you guys especially after she asked me if she banged her head and I said not that I know of!!!

I am certain the daycare would have informed me of that. I get incident reports for all minor injuries. Pedi nurse said kids throwing up during sleep is not totally uncommon and she would not associate with a head injury. If she didn't wake up, then there would be a concern. She said there is something going around and they can't even keep up with all the phone calls they are getting.
Thanks for being so concerned though!