My kitten drank milk and after about half minutes her belly is swollen and she doesn't really play/move a lot. I didn't give her the milk, I just gave milk to my other grown cat(I rarely give her milk) and she sneaked in the room and drank a couple of it. I know she will have diarhea and belly pain, but is there anything that I can do for her ? Oh and, should I take her to the vet ? It does not seem really dangerous, but is there any chance it is?