Hi King,
You have ALL the symptoms of Fibromyalgia. I'm learning more and more about it because it is now the most aggressive disorder I have going on. My feet and hands tingle and buzz all the time, non stop. Muscle twitching is constant, fleeting pain that moves around. With Fibro, the pain feels like it's right in the joints, but it's not. The pain is from the muscles, ligaments and tendons that surround the joints.
YOu also mentioned bumps and indents on your nails, that is a fibro symptom. So is the dizziness and fatigue.
Fibro causes a metabolic imbalance in the body that can affect the thyroid, adrenal glands, etc. That metabolic imbalance will cause those fingernail bumps, etc.
Your blood work came back normal, which is great! If you have fibro, your blood work will look perfect. But you'll feel far from perfect!
I'd check in with the gang in the Fibromyalgia forum. Also mention this to your doctor/rheumy.
Good luck,
Ginny