I think the GP, after a morning of listening to people telling him that they or their kid had woken up that morning with a cough or sniffle, was relieved that someone had waited a few days before confronting him.
I'm not actually ill any more, it's just hurty throatyness. Seems a bit less today. It's quite surprising how much saliva we reflexively swallow, we're like bodily fluid conveyor belts.