agree with all. hopefully its just the food change, new home, etc. as its stressful for the pup. lucy had diarrhea at first when we got her. she had worms right away & was treated with meds. heres the thread when she had her issues..now shes fine but definitly get her in so they can run all the tests as they are so young & fragile...
http://www.globalpaw.com/dog-health-...hea-again.html (diarrhea again..)