My 12 yr old son had a head trauma, possibly concussion, 4 days ago. He's had bad headaches since (he also has a history of migraines). His pediatrician recommended 200-400 mg of ibuprofen, or an adult dose of Tylenol. In addition to headaches, he is constantly hungry even after big meals. Could the hunger be a result of a concussion itself, or of taking the pain killers?