Megan (our 10 month old papillon) is in her first heat. No, we are NOT breeding her, but made an educated decision to wait until 18 months to 2 years to spay her. We don't have any other dogs, and are being VERY careful about keeping her on a leash at all times when outdoors. Anyway, since this is our first experience with a dog in heat, I have a question for everyone. The day after she started, she experienced very loose stools for 5 days. Her appetite was always normal, and she was not getting dehydrated, so I didn't worry too much. I fed a bland diet for a bit, and now she's normal (obviously still in heat since it's only day 10 or so) Is this a normal side-effect from being in heat? I can't find much evidence of this online, but thought it was quite a coincidence since diarrhea normally is not an issue for her. I'll have to update pictures soon, since she's certainly not the same "puppy" that's in my sig and avatar, lol.