mike,
this is the best answer to your question "Is CFS universally recognized as a legitimate ailment?"
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2680051/
the introduction explains, quite clearly, the current state of CFS understanding...this article is what led me to Dr. Myhill and her booklet...
I'm having the test done, probably at the end of this month just to see what I need to fine tune my supplimentation...I've already found my own way to most of the suggestions in the booklet. hopefully I can squeeze some more ability out.... the top thing on her list is to pace yourself, to learn what you can do and never to do more than 80% of that on any day. as we both know that is the problem !!!!! if you take nothing more from the booklet I believe that is the KEY point...
David