For the last 18 months I have pursued this theory. Been sick 5 1/2 years and tried over 25 different treatments with no success. One chiropractor told me all his FM patients C1 was out including mine. I was treated by a chiropractor for several months with occipital adjustments. I had improvements as did many other patients but the improvements didn't last. 2 months ago I was treated with a AtlasProfilax - an instrument that gives a specific massage of the short muscles in the neck freeing the atlas or C1 to return to its natural position. After the single session (not by a chiropractor) I was instructed to have deep massage at least once a week to keep the body on course and help the healing process. I have had improvements but it is too soon to know if ths is the main cause of my FM & CFS symptoms and too soon to know if this treatment works. Anyone out there who thinks our problem is with our atlas?