Oh no I'm so sorry you're dealing with this and Roxy and your son being sick. When our babies are sick it is worrisome enough, but even more so when you don't know the cause. I hope the antibiotics work and the fever goes down and she feels better soon. I agree with others that this could still be an obstruction, and if she doesn't improve ask the vet for an ultrasound. My male Bulldozer has swallowed socks 4 times and a dishcloth once, and only showed symptoms of vomiting and diarrhea on one occasion. The other times he didn't have any symptoms and ate, drank, and played normal, then one day just either threw it up or pooped it out. Sending love, hugs and prayers that all your babies feel better soon. Please keep us updated.