Cubby just went through all of this. He never peed in places he couldn't until we got him a new litter box. Then we locked him in the bathroom and he peed in the bath tub, and there was blood in it. So that's when I took him in. I think you should take him in. I don't know how much it will cost you, but it cost me 104$ for food and meds and the check up. They put him on prescription diet C/D. They told me he can't have any treats at all. Which is hard for us not to give him treats. We are working on it though.

Katie