tigerlily84,

Yes, it sounds like depression. Loss of interest. I feel like this all of the time. Well, I felt like this for most of my life. When you say "It's like I'm watching someone else's life" that is exactly how I feel. I feel like I am watching this person go through this miserable life with absolutely no control over what he is doing. You could be having mood swings too, that is what I have. It is where sometimes you might think you are perfectly ok, you can be around people and smile and laugh a little. But then something hits you, you forget entirely about being able to smile or laugh and you don't want to do anything. I don't know how to help you, but I am truly sorry you are experiencing these things.