On this forum there are countless threads about viral symptoms of CFS. It really bewilders me. I can't identify with it at all. CFS does not feel like a cold/flu to me at all. The only potentially 'viral' symptom I have is a sore throat, nothing more. I did not cold/flu/sickness preceding both times I have gotten CFS. The only thing in common is that both times I was at an exercise peak (Its probably not related, but it made it easy to pinpoint both times I got CFS) OTOH both times I have had CFS I have had fibromyalgia to go along with it. My fibromyalgia symptoms tend to come and go (Eg. bad for a few months, and then disappear for a few months) -BUT- I have only had fibromyalgia during times I have had CFS. Before getting CFS I never had any signs of fibro and in my 10 year relapse from CFS I didn't have fibro symptoms either. IME fibro and CFS appear to have the same underlying cause. So I'm just curious about more information about this. Is what I have clearly different than those who have 'viral' CFS? Are there distinct differences between the types? I fit the CCC criteria for CFS so this is not a case of misdiagnosis.