Really sorry to hear that, your situation does sound serious. I'm fortunate that I've at least found something to keep me stabilized and now potentially a cure (a probiotic, won't go into details here).
There's one lady on the adrenal fatigue forum who was bedridden for about a year but managed to recover substantially with the help of physical therapists. Here's a link to her original post: //www.curezone.org/forums/fm.asp?i=2078095#i
I hope you find the answers soon! I know all too well what's it's like to be suffering so much with no answers.