There are a lot of things that could be going on such as fibromyalgia which includes chronic fatigue and the ideas above. Please start out with a Rheumatologist to be checked out for autoimmune problems. There is a reason why you are feeling the way you are. You might want to do a search for fibromyalgia, chronic fatigue, sleep apnea, restless legs syndrome, or by your symptoms and see what you turn up on-line.