Sam-e was the first "thing" I tried on my long path.
Was awesome for me. Basically- take it before going to bed, then have "jump outta bed" type energy upon waking. Also a sharpness, a clear-headedness that I hadn't experienced before...
Unfortunately, this feeling only lasted a few weeks. I think I adapted to it.
-Then learned about methylation, and other things and have been working on other things...
Now, when I occasionally try Sam-e, I don't get that same "jump start" as before. I still take TMG every once in a while, but not sure if it helps...
--- fyi, I don't even know if I have CFS, but many of the things I've learned here have helped with fatigue and etc...
sorry- not a lot of help in my post. Just posting to note that Sam-E worked great for me at first, but then not so much after...
Jimmy