I know I'm late to this party, but could it be an elongated shadow? Like, with as bad as pollen season is around all over, it might be that... Also I know for myself, that if I have a stuffed up nose, my head is going to RAGE.... So you might get some 4way nasal spray and try that on him. Sometimes it helps some people as it's a vasoconstrictor too.. I saw that tip a long long time ago, in a far away land, known as the CH.org forum. LOL. Some people attempted to abort with it if I remember correctly.... Just don't overuse it or you'll get a nasty set of rebound sinus congestion!