Yes, the doctor did mention stress and with selling our house, Tanner has really been stressed out. I also noticed that his weekly bouts with diarrhea started after grooming, daycare...that sort of thing. His symptoms are repeated bouts of diarrhea lately every week, fatigue, listless, pain, not eating. He will be up 3 or 4 times a night and when we take him outside he just paces back and forth. His stool has been negative the last 3 times.