Definitely there can be a correlation. Of course, stress impacts health in general by weakening the immune system, among other things.
Teddy has had diarrhea on a couple of occasions that I think was caused by his fear of storms.
Whenever I am stressed, I try to hide it from the pups because I know it stresses them. These little ones are so in tune with us. We can't even have a serious discussion about any subject without the pups trying to 'comfort' us. We have to interject things like "right, puppy?" in a happy voice to try to trick them.
__________________ Kristin, Max and Teddy  |