I'm really sorry you are going through this since I've gone through the same and know the utter frustration. When Loki used to continue peeing while I yelled and even as I approached, I knew it was behavior - he didn't, in fact, have any urinary problems. You don't want to hear this because it costs money, but have you thought of behavior medication - perhaps you have already and I'm too new to know. I've been pleased by the way Clomicalm has worked on Taranis.