I have long believed that chronic fatigue and chronic pain were kindred diseases, perhaps reverse sides of the same coin. In my writings, I have explored the frequent occurrence of narcolepsy in people with chronic pain, including migraine. Sometimes this is full-blown, but unrecognized narcolepsy. More often it is some fragment of that disease, most importantly the vivid dreams known as hypnogogic hallucinations.
I suspect that hypnogogic hallucinations and other symptoms of narcolepsy may be rather common in people with chronic fatigue. My experience is limited thus far but I believe the idea just may pan out. If so, it will be interesting to observe the effects of stimulant therapy on both diseases. If any readers suffer chronic fatigue and also vivid, threatening dreams, I would like to hear from you