I'm concerned about my dog, an eight-year-old Brussels Griffon. He cries out sporadically while going #2, can't seem to stay in once place while doing so (often walks up the stairs while "going") and has been going #2 in the house more and more frequently. We took him to the vet the first time he cried and the vet said they didn't see anything out of the ordinary, and suggested the glands might just have been full. I'm worried it's something else. His anal area is constantly caked and looks inflamed sometimes. Stool does not look any different than times when he hasn't had a problem and we haven not changed his diet recently.