Do your symptoms and flares seem to have a sort of rhythm? My husband made this observation about me this morning, that my ups and downs seem to have a rhythm to them. I am not sure if this is true, and will go back into my health journals to see if there is a pattern, but I wonder, if it is so, if there is a relationship between hormonal rhythms in the body and CFS symptoms, flares and crashes. I know another aspect of this is just my own behavior, ie energy management, but it does not really explain it all, so his comment made me pause. Any thoughts?