I just had my dog neutered on Wednesday morning. Ever since then (he ate that night) he has been having diarrhea. Its really runny and he's going pretty often. Has anyone that has had their dog neutered experienced this? I know its pretty common for stomach upset, but its really watering and a reddish color. Were not sure if its blood or not though. I called the humane society where we had it done and they said that it could be the stressed from the surgery or it could be a parasite thats flourished in this stressful time. He's a 3 year old pekingese and I want to make sure he's okay. They recommended seeing a vet, but if its just stressed it should pass soon. What should I do? Should I just wait another day or so and see if it goes away or should I call my vet and get him in?