http://m.hfme.org/site/mobile?dm_pa...2d53a1&fw_sig_social=1&fb_sig_network=fw#3013 Okay, that link looks insanely long, but it leads to a chart that gives an exact definition of ME that I haven't seen before. One of the things it says is that ME onset is always instant and severe, whereas CFS is always gradual. Does this mean that severe is always ME? Are there any cases here of severe CFS that came on gradually but otherwise are identical to ME? All of the conflicting information about this illness is making my mind boggle.