A friend of mine committed suicide when we were 12. He thought that no one liked him and that he was all alone. He felt he just couldn't go on with his pain and loneliness.
You know what? Most teens feel that way a lot of the time for a number of reasons, but it eventually passes. The loneliness that my friend felt was only a small percent of the loneliness and pain he inflicted on his family and friends by killing himself.
His mom, little brother - no one could understand. They will never get over this and it's made their lives that much more difficult to live.
I know you said that you don't like to talk to counselors, but there are some very good ones out there that can help. I'd suggest looking around for a good one by asking your school counselors or family doctor to recommend a counselor. Ask a family friend if they know of one.
You don't have to go back if you don't like them, but it's always worth the try. The main thing is, don't keep these feelings to yourself. Tell someone whenever you are feeling like this. Just someone to listen to what's going on in your life, inside your head at the moment. It really does help.
If you have no one that you can trust you can call a help-line that is confidential.
Also, I would definitely recommend that you tell your doctor you are having a rough time (you don't have to go into details if you don't feel comfortable) and see if there is any extra help he can give you. Maybe you need a new medicine for your Chronic Fatigue. Whatever it is that is going on, there is possibly something your doctor can do to help.