My small dog just had a small drop of brownish red blood come out of her rectum, and so I took her out to potty and she had a softer stool than usual, but still solidly formed. My boyfriend gave her a small piece of pizza this morning, and after she had a gooey stool but, obviously things were more firm this evening. I’m taking her to the vet tomorrow to get one of her shots updated, but do I need to find an emergency vet now, even if she’s acting completely normal?