G' Morning Danielle,
I have been dx'd with both. Originally (10 years ago) it was a dx of CRF after the final bout with Lyme then last January I got the dx of FMS. Treatment wise, I got more meds for pain after the FMS dx than with the CFS dx. The symptoms in my opinion are the same. I think its the same disorder with two different names. My doctor basically said the same thing.. ei; six, one half a dozen. I was treated with trazadone & paxel when they were calling it CFS then changed over to elavil and tramadol when I got the FMS dx. Not much of a difference.
All I know is.. if I do have both, the treatment is inadequate at best.
Happy trails...