I don't know how normal this is. We adopted a couple of brothers at Easter. I've posted about them before - the larger one is massive, muscular and a bit of an overbearing thug. The little one is quite passive and very much Beta Cat. Anyway, the little one is prone to being sick a fair bit. Not a whole meal (or very rarely) but usually a pool of fluid. I can't see anything in it (unless he's just had a mouthful of food or a couple of cat treats) - no obvious fur balls. Since they started going outside on supervised adventures, they both eat grass enthusiastically, and I assumed this is to help pass fur balls, but I've not really seen any.
Little Cat does this several times a week now. Should I be worried?
Cat tax of the wee one.