She has been getting her fluids once a week for a year now. It is obvious that she has needed fluids all these years. In fact we say we can hardly stand her, jokingly. She has become a real brat but that is OK with us. Bloody Stools Blood in the stool can appear in several ways, each indicate a different problem.
Black stools mean bleeding high up in the digestive tract, most likely a bleeding stomach ulcer.
Reddish stools indicate blood further down the pipe, after the digestive juices have been neutralized somewhat. This can be anything from ulcers in the small intestine to ulcerative colitis. Get a sample to the vet.