My 4month old blue pit bull started throwing up Saturday morning. It started being a white froth. Now it is a mucusy yellow. She will not drink or eat. She has had diarrea twice since then and we got her to eat a little bit on Sunday afternoon but that night she threw it up. It was whole food, not just like digested food. She is less active but she still wags her tail, runs and will play a little. I don't thinnk its parvo because she wouldn't even want to move if it was that. I am think it is worms or that she is stopped up. HELP PLEASE!!

I wouldn't rule out parvo. The white and yellow froth is not something that is normally caused by something like worms. If it was worms, you can see them in his stools, or he would be dragging his butt along the carpet. It does sound like an intestinal problem. Parvo is deadly, so don't take any chances. Take him to the vet IMMEDIATELY!
I hope it is something less serious, but don't take any chances. You know he is sick, so he needs your help!
Good Luck!

I'm sorry, I meant to say "she" not "he". Call your vet and tell him/her your pups symptoms. They will be able to tell you if it is an emergency. It's Tues, and if this started Saturday, and it's not getting any better, there if definitely something wrong!

I've found a website that might help you. www.pet.justask.com Try that out, may be helpful for future questions too! :)