I am happy to address the questions that you pose, although it is important that you recognize that my impression is based entirely on the information you have provided in your posting and is by no means a substitute for an office visit with a neurologist. Diagnosis is contingent on detailed history and physical exam and as such, the following information should be considered solely for educational purposes.
Your symptoms remain non-specific and it is really hard to pin point a specific disease process that can cause such symptoms, especially with the normal physical exam and the unremarkable workup you had done so far.
if you still have the symptoms persistant I believe it is a good idea to re-evaluate you by obtaining a detailed medical history and perform a thorough physical and neurological examination. Then may be repeating some testing to make sure nothing was missed with the first round of testing. primary concerns are muscle and nerve diseases. if everything turns out to be negative again then an evaluation by a rheumatologist is reasonable. another thought to consider is the stress factor, sometimes exessive stress (that can be sometimes difficult to pick up by the patient himself) can cause a variety of physical symptoms, including the ones you mentioned. I beileve addressing this issue can be helpful as well.
Good luck, I hope you find some answers soon.
Karen
If you want some temporary relief with medication, get "nortriptolene". It deals with nerve damage pain and it works well.