For the past couple of days Potter has started sneezing A LOT. He'll sneeze three times or so at a time. They don't seem to bother them and he just continues on as if nothing happened. Then tonight his sneezes have become more aggressive. It's almost like his whole face will contort when he sneezes. When he's done he'll look at us like, "what was that?!?" But then he'll just go on about his business.
We are getting ready to switch Potter to a grain free food because he's been getting increasingly itchy and has a history of yeasty ears. He's 15 months and other than the itchiness and now the sneezing, he's perfectly healthy (just had his yearly check-up/shots a couple of weeks ago). Also potentially important is that we live in North Florida and spring hit us with full force this weekend, including heavy pollen (though this didn't affect him last year).
Any idea what could be causing this? I plan on calling my vet in the morning but wanted to check here, too.
Update: he just had 7 of these intense sneezes in a row. It looks SO uncomfortable.