I have a 6 year old Shih Tzu and the past couple weeks he has been urinating blood and acting like a whole different dog. He's been staring off into space, not eating, not wanting his stomach to be touched, and also not begging to go outside to use the bathroom he will pee wherever now. Any ideas what is wrong with him? People have told me it is a UTI but he acts too different I know my dog and he is just sad every day. Both of his parents had cancer also.