I need help with my chihuahua. She is 4 years old. My friend let me have her about a month and a half ago because all she would do was stay in her cage and she just seemed so miserable there. She loved me, every time I would go over there she would stay right under me. If she even heard my voice she would get all happy. Well here for the last 4 or 5 days she has started doing the same thing here. I can call her and she won't come to me so I will have to go look for her and I find her in her cage. She won't come out I have to actually get her out of the cage. I have tried shutting the cage so she can't go in there but she'll just hide under the bed or in covers or something. It is so sad when she acts like this. What can I do or does anyone know why she does this?