3 of my cats throw up very rarely, 1 of them throws up all the time. Like 3 times a week at least. Mostly hairballs but she also eats too fast and will throw up her crunchies. It's a delicate balance of routine and the exactly correct amount of wet food/hard food.

Throwing up once doesn't necessarily mean autumn is sick, she may have just gotten too excited for mealtime. Keep an eye but don't worry too much. Kitties barf sometimes :agreed: