My 9 month old Lady has had blood when she goes poop since we got her at 4 months. We have been to the vet several times and have been to cornell university. Cornell said she had an allergy to protein. Or vet put us on allergen free dog food and Lady's stool became worse. We are on I/D food now and her poop is formed but still alittle soft and she has blood at the end of her bowel movement. I have no idea what to do next. We have spent a couple thousand dollars on vets with no improvement. Does anyone have a suggestion