My 16 year old Snow was put down 3 weeks ago. The first few days my other 2 cats didn't seem to sense. Then they started to look around for her. I saw them looking in all Her spots, her favorite corners, chairs, beds, looking at me as if to ask, where is she? The past week has been difficult with the 2 of them. They are 2 very well behaved cats, never any problems, but as I said the past week Zoe, the younger one, isn't acting herself, sad, and Zazzy, the older one, is throwing up and depressed. extra attention and love are given in heaps, but has anyone experienced this with their cats after one of their buddies pass on? Snow wasn't really friendly with them, as she was deaf, she bonded more easily with people, not the other cats. But Zoe and Zazzy always seemed to check on her, especially as she was aging and getting more sickly. I don't know what I'll do if something happens to them.