[DvlshAngel985]

Just to make it clear, I'm posting for anyone else that might run into this problem. When a dog has these symptoms, get him/her to the vet ASAP!!!!! It could be any number of things.

In the case of a little dog such as this one, with what I can only assume to be attachment issues (taken from his mother too soon) he could have made himself sick. I have experienced that myself, and it started with the symptoms that the OP's dog had. He had really runny diarrhea, wasn't playful, and when it took a turn for the worse, Kaji could no longer control his bladder or his poops. Pee would run down his belly when he would turn over for belly rubs because he simply could not control himself any more. His nerves had made him sick. Kaji has some separation issues, so in a sad way it made sense that this was his reaction when he was separated from me for one afternoon. Like the OP's dog, he was in the best of hands with his canine bff and her parents. It didn't make a difference.

This is all speculation, and the only one that can determine the cause of any dog's ailments is a vet. It could be any number of things, and in my case it was nerves and severe separation anxiety. For any case, PLEASE SEE A VET!!!