If it makes you feel any better I have experienced ALL of the sensations that you have. It's been years since most of them, although when I'm under extreme stress they temporarily return. This is not to suggest that YOU may not have a real physical issue that your doctor should need to be aware of but I know mine were personally stress driven. I thought for years that I had some kind of brain tumor. The colored lights, that strange "energy" you spoke of buzzing around like flies. It happened to me when looking up at the sky mostly, I don't believe I ever saw it on my hands. They were freaky, but for me, harmless. Good luck.