canned pumpkin does work
& when Bee has diaherra i feed her plain white rice & she almost always eats it & keeps it down. It is something that soothes her tummy & helps her feel better. so you could try that too. uhm, so I would reccomend trying that. But dont feed to much of it. make as much as you want, but only give her a cup, maybe two depending on how much she normally eats. & then save the rest.
Other than that I wouold say call the vet & the breeder.