Hello all, I am a 34 y/o male that developed "Post Viral Fatigue Syndrome" at the young age of 16. Since then, I have had periods of symptoms that include everything on the CDC & NIH's criteria for diagnosis of CFS plus several more... It seems to come and go for me though so I have always thought that I have a mild to moderate case. I'll have a relapse that'll last from 4 to 10 weeks just after a viral infection (it need not even be enough to cause significant symptoms). This occurs between 4 and 6 times per year. I do not personally know anyone else with this and, as with most of you, have problems getting people to understand when I appear normal at times. When my condition is in remission, I can do most activities that a normal person can do, but may be tired longer afterward... Because of this, I still question whether I truly have CFS even though it should be obvious by now. And just to quantify my fatigue: Have been too tired to go up the stairs to bed. Have needed to break in the middle of a shower. Sometimes feel too tired to breathe... I guess I just need validation from other people that have CFS. Thank you for your responses. I appreciate them!