My 15 yr old son was playing football at lunch with friends, he does not remember what happened, no one really knows, he hit his head some how, went to the nurse, could not remember what day it was or if he ate lunch or not, he thought is was the last day of school (which it is not) he doesn t remember working last night and when we came home he asked if we got new carpet which we just installed last weekend. Pupil s are fine can t find and bump or bruising should he be seen?