I got my standard poodle puppy about a week ago. She is 13 weeks old now. The breeder was feeding her purina puppy chow, and gave me a small amount to feed her before I get her her own food. I went to several pet stores, and couldnt find purina puppy chow, so I bought some purina pro plan focus at the suggestion of the pet store worker. Ever since then, she has been having diarrhea multiple times per day. I know it was wrong to switch her food abruptly, but I didn't think the reaction would be this bad. Could it be that she has addison's? Today she has pooped 7 times between 9 AM and 3 PM. Please please please, any advice will help. I feel very bad for her.