Son is 7 (8 in october), weighs approximately 73 lbs. Has headache, fever was 102 before I gave him children s advil at 8 am. Complained head hurt again, and starting to get warm again (but not too bad). Gave tylenol at 12 noon, but he threw up immediately. Should I try to give him tylenol again, or wait until 2 pm and give advil?