There is a place for everything. I've done acupuncture, yoga, counseling, PT, and regular medication when no doctor could figure out what was wrong with me. Maybe I am jaded because I live in a place where I have access to world class medical care and there is no shortage of physicians who fully believe in complementary medicine as needed. I think you need to be a very good advocate for yourself and understand the value and risks of all treatments. Even alternative medicine (herbs, dietary supplements) have serious side effects.
My experience with symptoms very similar to Jiffers' is that it helped me to give up all expectations of speed. I could care less about stats or competing against anyone, except myself. I got back to where I was, and now I just don't care. I am fitter than I was before I got sick because I am doing other sports and I changed my diet. And, I enjoy cycling a lot more.