We cannot diagnose but you do sound like a Fibromyalgia candidate.
If you don't mind me asking, are you taking stain drugs for cholesterol, as these frequently cause fatigues and muscle pain?
If so, a supplement called Co-Enzyme Q10 can be extremely helpful as it is the substance depleted by stain medications, yet is needed for energy production.
If not, then please follow the advice you've found in our Fibromyalgia pages as best you can.
Best wishes and feel free to come back with your findings