9 month old wheezing on purpose?

My son is very vocal and he recently started taking big breaths in that sound like he’s wheezing. It took me a minute to realize he was doing this on purpose since he breathes fine except for this one random, wheezy breath here and there. You can tell it’s from the back of his throat too where you would make that noise if you tried to wheeze too. Does anyone else’s baby do this? Is he just exploring noises or something or should I get him checked out? He’s never been sick, no breathing issues, color is fine. I kinda feel like this kid just likes messing with me.