I know that guinea pigs can't technically throw up, but mine was just heaving as if she were about to. No food came up, but she was heaving and making a sound, just like dogs do right before they throw up. I understand guinea pigs are not dogs...but if she's not trying to vomit, what then? If she is trying to vomit, what in the world does that mean? She seems to be acting normal otherwise, and has a healthy appearance. Thanks for the answers! (P.S. I take my pigs to the vet and am happy to take her if she needs it, but I would really appreciate answers to my actual questions, rather than just being told to take her to the vet)