My 11yo son has had an unproductive cough for about a week. He has been home from school all last week with fever, fatigue and headache. Took him to dr. on Thurs. They don t think he has flu but suggested if he doesn t feel better by Sat/Sun to bring him back. Still has cough, headache (mid forehead) and fatigue. No fever. Most concerned about fatigue. This kid is literally bouncing off walls and very active!