Could someone be so kind as to provide me with a little clarification on the above? CFS=Chronic Fatigue Syndrome, FM=Fibromyalgia, CFIDS? In relation to Guai - Dr. St Amand believes FM and CFS are one in the same. I recently started the Guai and am under the impression that Guai should help with both. However, I a am somewhat confused about CFIDS? As always, I thank everyone so much for any replies, information, etc.