I wondered if he ever hit his head, I had this happen to me from a fall and received treatment that helped save my life two years ago. Many people helped save my life a, speck of dust person in the masses of human life occupying this planet. He should have gotten checked out fully since he had the resources to get immediate care, but us men sometimes will say I'm fine ill just take two aspirins and be fine. Don't put off any adverse health conditions. If you experience a adverse change with health or mind in the way you feel, seek professional help, it could save your life and your family the pain and grief from unexpectedly losing you.