In the past couple of months, my cat Alli (she is 9 now) has been urinating on the floor instead of using the litter box. Back in May, we brought another cat into the house and that seems to be when she started defecating and urinating. But after a few weeks, it seemed to stop. Now she is openly (in front of us) urinating on the carpet again. Is this a behavorial problem or something healthwise? If behavioral, does anyone have suggestions on what to do? I love my cat and only want to help her. Please help!