My 8 year old son hit a rock with his head while rolling down a hill Friday 10-24-15. On 10-25-15 woke nauseous and had a belly ache, pale al day, no fever, could not eat, he spit up regularly but not deep retch, mostly clear, took a 4 hour nap this afternoon with no vomiting or spitting. Fever was normal all day, he was pale, and laid down in a fetal position after waking from nap as he did prior to nap. Nap was peaceful and deep. Did not check eye dilation. Your suggestion or comment? Bob