Hi, my cat does this sometimes a couple
of times a week and goes on a couple
of weeks break and also acts perfectly fine-playing, eating, etc. I'm a little worried, too. But, she seems fine! What I plan to do is to give her a hairball remedy twice a week and see how that goes. I'd try that with your kitty, too. It's cheap and worth a try with our cats especially since there's no other symptoms.