Hi. Is there a difinitive test for ME that can lead to an actual diagnosis? I suffer from FM (with a Dx) and Migraines (with a Dx) and newly ill with Guillain-Barre (with a Dx). I have always suspected for the ten years I have had FMS that I also have ME (aka CFS, right?). Does adding this diagnosis help my case toward LT Disability? I have all the Sx for Lyme Disease as well - I get there's overlap of these others and LD, I've just never wanted to know :\...Should I try for a LD test too - would this help me get LTD? I work as a kindergarten teacher. I know what it takes to do the job and I barely could do it before I developed GBS this summer. thank you, Lisa.