Well, Mitzi isn't a kitten, she's about 2 years old and she gets the hiccups when she's stressed. I'm glad to read that it really doesn't hurt them, it's just like our hiccups. She just looks bewildered when it happens and gives me that look that says "Mom! Make it stop!" The first time I tried to scare her with a little "Boo!" but she just looked at me like I was nuts, gave me one of her high fives and then hicced again. What a nut!