Hi all..... yes, over the past ten years I have experienced ALL of the symptoms that you have listed - notably headaches.
The headaches are of two types: neurological inside the skull, and physical in the skull itself.
Modifications in my diet helped to some degree, but not much. Eliminating sugar and wheat helped the most.
Muscle spasms everywhere got really bad at one stage, but have now been eliminated through taking bucket loads of Ca/Mg.
Most of the other symptoms skin rashes, terminal fatigue etc etc etc I have managed to cope with.
For the past 8 weeks I have had a monstrous pain in both sides of my neck. It gets worse if I try to stretch, and it is painful to turn my head to either side.
It's worse in the morning.
I exercise daily, meditate, eat as raw as possible, drink gallons of filtered water, avoid alcohol and caffeine. I am clean living. 53 years old
I'll be glad when I've had enough!