Hello,
My dog does have a vet appointment at 3pm today but it's breaking my heart listening to him, he was dry heaving on Saturday according to my parents and he was very tired yesterday and didn't eat anything and then at around 4am this morning he started dry heaving (loud enough to wake the house up) and has been coughing up this substance - I'm not asking for expert advice (unless there's a vet here) but was wondering if anyone knew what it could be? I'm going out of my mind with worry. He's been doing it since 4am and it's 12 now :(