Zoey, my cocker has been on Blue Buffalo for 10 months. We never had problems with the loose stool until the last few weeks. I just started giving her boiled/baked chicken with her kibble and canned. I wonder if the chicken could be to oily for her system? I'm going back to the start and use only kibble and canned. I will add the pumpkin if things don't improve in a couple of days. I'm taking the bully sticks away too. If the stool firms up, I'll try adding the chicken back into her diet. If Zoey does OK, I'll add the bully sticks. Hopefully, one of these are the problem. Always looking for help with my 4-legged friends.