Since yesterday morning, my cat has been sneezing somewhat frequently. It slowed down this morning but he’s doing it again this evening. He’s also had eye boogers that I’ve had to get out of his eyes. Could this just be seasonal allergies or are these symptoms something more? He’s my only cat doing it (three others, one from the same litter as him). Nothing in the house has changed, no candles, cleaning products, etc. he’s almost four if that changes anything.