Oh, Dottie, I am so sorry. I can completely empathize with that discouraging feeling. Those clinical tests are NOT scientific! You need the actual tests, like a Single Fiber EMG. This guy sounds like he can't be bothered.
Well, you deserve good health care. Can you please do a new post and see if anyone knows a GOOD neuro in your area? I don't know anyone in TN. The closest docs I know are at St. Louis, MO (Washington University). Dr. Harms, to be specific. Yes, Harms!

But I've heard he's really good.
Please don't be discouraged. I know it's hard not to be diagnosed completely. Have you tried talking to your primary doctor about all this?
Hang in there. Someone out there WILL help you.
Annie
Has someone looked at your spine? Like your c-spine? What if you have a pinched nerve?