My male Pekignese was throwing up on Friday, Saturday and today he has had diarreah, Other than that he seems o.k ,he is very playful and isn't crying or anything. I'm worried because I had bought my dogs dry Iams dog food but mixed it with kibbles and bits. now I have been hearing about Iams and dry dog food not being safe. My female dog hasn't had any problems, they were eating the same food. What are the symptoms that i need to be watching for? The last time they ate the food was friday.