What do you think is happening with me if I am experiencing these symptoms?

Well, I am going to tell you it's depression. It doesn't matter which type, they all come from the same place. Only the Dr. needs to know how to label it. Depression is depression in any form. You do appear to suffer from it. Go to your Dr. and ask him/her to recommend a psychologist to you. Write out all these symptoms and hand them the paper. If they want specifics, they'll ask you. The sooner you go, the sooner you'll start feeling better. Best wishes.