The difference is that an organic cause has been found for sleeping sickness. Also, patients don't recover after psychological therapies, as they do with CFS. I

The difference is that an organic cause has been found for sleeping sickness. Also, patients don't recover after psychological therapies, as they do with CFS. It's important to be open-minded to all etiologies. And I never said it was "primarily mental". I think it is primarily stress, which can cause mental symptoms (but not always).