hi mich, that sounds no fun AT ALL.
are you taking any meds, vitamins, supplements, anything?
the only time i had phantom itch, as i called it, because you can never physically find it with scratching to get any relief, was when i was too high in folic acid.
if you're not taking anything, well i can take some guesses and offer some suggestions, such as perhaps an iron deficienycy - but it will be easier if you can tell me any other kinds of symptoms you have to deal with, and any comorbidities.
i'll keep an eye out for a reply, ttfn