Alison, when I was assessed (for fibromyalgia) we were given info and the 95% (+/-) was part of the info given and discussed, but sorry, no, I didn't think to make note of the source. I know Trauma is very true for my young Life. The info came from a clinic that specialized in pain and is mandatory if you wish to continue receiving pain medication. I would imagine one could find same on Internet.
I remember being shocked at the high percentage and questioned them about it, especially considering it was mainstream allopathic medicine.
As an example of caring too much, in past days I would have gone back to the clinic and gotten the info and shared it with you, and if I had all the time in the world, I would, but now I don't do these things. There is so much in my own Life that needs taking care of it is essential I fulfill MY needs before others as Life has proven to me others won't.
As for sucking the Life right out of you, look for what is draining you, even the thought of it makes you feel tired, and that will help point out source. Moving forward, action, is a huge step in recovering from CFS.
The mind really is in control of the show with our bodies. Considering every few years (7?) our cells are completely replaced. It's the old messages/patterns that are stuck within.