I have a 14 week old golden retriever puppy. A week ago she received more vaccines and the vet gave us a sample of food. I mixed in the food about 75% old food 25% new food. That same night she was up all night with diarrhea. The next day I added more old food, but that didn’t help. Since then most of her poop is a yellowish, mucusy blob. Occasionally she will have one that is more firm. She’s been on the hills ID for two days and started probiotics today. Still the same thing. She is eating and drinking normally. She’s playful, but a tad more cuddly than normal. She’s been a lot better about telling us she needs to go out. We brought a fecal test to the vet today and should have results tomorrow. The vet doesn’t want to start antibiotics unless things get worse or the test comes back. I’m not sure if I should be pushing for more or if the vet is right and we should be taking it slow...