This clearly sounds physiological, but what's the cause and what's the effect is unclear. You decribe compulsive exercising, metabolic problems, neurological symptoms, and an over-reactive nervous system that prevents sleep.
With all due respect, I believe you should consider being evaluated for other conditions that can cause this kind of compulsive exercsizing and arousal problems. To that end, it'd be worthwhile to see a good sports psychologist to evaluate the compulsiveness, and to see if that is contributing to this problem.
Best of luck!