Weight loss no unless other underlying conditions exist. Itching and crawling yes it does.
You do exhibit also the signs of possible Morgellons :
http://www.museumofhoaxes.com/hoax/weblog/comments/2459/P280/
But this could tie in also with your HSV and nervous system.
It appears that you have had very good work ups and testing. It is sometimes just a matter of finding the right doctor at the right place.
I would be checked for Chronic Fatigue Syndrome a condition caused by the Epstein Barr Virus. So this goes back also to HSV and Neuro problems.
The best I can tell you at this point is to continue to read over what I gave you on the links and further your test for the Epstein Barr and other Neuro problems such as shingles and hives.
This is about the best at this time I can provide for you.
You may want to be tested for the Mulluscum disorder as well.
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