I would definitely take her (the dog) to the vet. It may be that she has worms or a touch of kennel sickness, but it requires a vet diagnosis.
It has to do with the meds they give them, its will stop but only give her solid food. Because the soft food makes it worse and plenty of water hopefully that will help.
That's more of a vet question than an animal shelter question..call Carroll county animal hospital
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