Last week, Boomer and Sooner both started sneezing quite a bit. They were still eating and playing like normal so I left them be. After a few days, Sooner was all better but Boomer's eye started to look infected. I treated it with the antibiotic drops and it cleared up by around Sunday. Now last night and up to this morning he has been making a snorting sound a lot. He doesn't appear distressed, his ears are happy and he snuggles in for attention. It is kind of creeping me out though because each time he snorts his body jerks a little. Is this just his way of getting over the cold?? Boomer has never been sick! Should I call the vet when they open this morning?