First of all, keep in mind that I am unable to diagnose you because I am unable to examine you, this forum is for educational purposes.
Please see my previous post. As stated before, I would use this set back as an oppertunity to be re-evaluated in hopes that something that was not found before could be found now. It is common to have relapses in post-viral syndromes. Especially if you have a cold or other illness, it is common for all of your old symptoms to return, but they generally improve when the underlying problem resolves. Many people with post viral neuropathies never recover and I am encouraged to hear of your progress. Some suggestions to follow up on (I do not know the specifics of what blood work you have had) is stiff person syndrome (patients have anti-GAD antibodies) and Issac's syndrome (a K+ channel disorder), which may cause the symptoms that you describe.
I hope this has been helpful.
Some of the conditions which contribute to causing a deficiency include malabsorption in the intestines, low dietary intake, use of diuretics, high intake of calcium-containing foods, stress, and consistent strenuous exercise.
If you have had a serum magnesium test done, your body can be deficient even if that test comes back normal. Most of the magnesium in your body is stored in your bones and muscles, and your body works hard to keep your blood levels constant by pulling magnesium from your tissues. I would highly recommend asking your doctor about magnesium and other tests that your medical facility can do to check it. You could also research the subject on the internet, just be careful to find credible resources for information.
Good Luck
Kit07
Thanks for the information as I have already considered it may be something like that. Somehow I thought I recieved a vaccination against Hep C nd B in the past. I was working for a doctor about 14 years ago and was vaccinated for a few things. Not positive though, I would have to look into it more.