I was never diagnosed as such but I know that I suffered from emotional fatigue syndrome some years ago. I was very stressed for several years due to financial problems and a divorce. I developed anxiety and depression and a series of physical problems followed. I was always tired and distressed. I did nothing aside from going to work. I was diagnosed with hypothyroidism and diabetes around the same time.
I believe that I developed these health problems because of emotional fatigue syndrome. It's a proven thing that stress weakens the immune system and nervous system.
I think the best treatment for this condition and all the complications that come with it is dealing with the underlying problem.
I moved in with my parents for a while and found a job at home. This not only helped me fix my financial situation, but I also got my parents' support and company which made me feel better emotionally. Of course, I was being treated with anti-anxiety, thyroid and diabetes medications at the same time. But I think that working on the underlying problem is what helped most.
It's been three years now and my thyroid is now fine and my diabetes is better. My anxiety is also gone, so clearly my treatment worked.