I was fortunate enough to have my CFS, which started in 2006, completely go away in January of 2008. I had severe CFS and could not even leave the house. After 17 months I was cured completely of it but now it is starting to come back. I did nothing to cure it, it just happened. Has anyone experienced anything like this? It seems completely random and like no matter what efforts I make to stay healthy, it could come or go.