Eldonlon,
I also have chronic fatigue due to fibromyalgia. You might see a good rheumatologist for a competent diagnosis. A good diet, proper treatment and some light exercise every day has helped me a great deal. I take some supplements and can really notice a difference if I forget to take them for a few days.
Also, getting a bit of natural sunlight every day is important. I make a point of getting a twenty minute walk outside each day. I usually don't feel like it but am always glad I did.
I hope this helps. Please don't give up! I understand the frustration as I was often told it "was all in my head" and that I needed to "snap out of it."
Love,
Lenina