@Wendi - when I developed ME/CFS (it was over a period of years), I kept working and pushing myself as much as I could, for as long as I could. In retrospect, I wish I had paid more attention to what my body was telling me. I've often wondered if I could have avoided the onset of ME/CFS - which for me means PEM, or crashing - if I had listened to my body and quit pushing when it obviously needed help and rest. I kept getting the image of a car (my body) which was run into the ground.
Anyways, if there's any way for you not to work or to work less, not to have to push yourself, I think that might be best way to go. I don't think there's a magic pill which will restore your energy and health.
In another post you said you didn't want information about supplements. Well, supplements are the only things which have improved my energy and stamina, though I haven't recovered. There are so many supplements and sometimes I think I've tried them all, until I find a new one which I haven't tried, and which actually helps me. So I wouldn't write them off. Some of the major ones which help me are branched chain amino acids (5000 mg a day). thiamine (which caused my body to need more phosphorous so now take monosodium phosphate), B12, methylfolate (which caused my body to need more potassium so now take a potassium supplement), vitamin B6 in the form of P-5-P, d-ribose. Also a supplement called Cellfood is also helping my energy.