Clearest indication it was not ME. How many people here would ever describe their condition as "a bad bout" of ME. It was no doubt a nasty case of chronic fatigue of some kind, but it was not ME/CFS. As I said on PR some time back (and bearing in mind it is my wife who has ME not me), I went through a quite long period of what I used to describe as being "flaked out" and "fuzzy headed" quite a few years ago now, and used to wake up feeling like I'd never been to bed. But I never felt it to be ME, and no one ever suggested it was. As a completely unrelated activity, I started cycle commuting to work, and suddenly realised 6 months down the line I was much better. But like I say, I'm sure I never had ME - never had real physical exhaustion; never had PEM. But, if I'd been asked to describe my feeling of "fatigue" (a.k.a. feeling knackered as I used to say I felt), I would probably have scored it quite high, even though my physical capabilities were unimpaired - apart from being unfit prior to cycle commuting. When I look back to how I was then, compared to how my wife is now, there is a crucial difference. I still had my physical capabilities; otherwise I could never have taken on a hilly cycle commute of 14 miles a day in the first place. My wife wouldn't have a cat in hell's chance, the physical capability is not there; it used to be though, we used to walk all over Dartmoor, The Lake District, South Downs, etc, and my wife had her own gardening business ... until she was struck down with ME. But, and this is very pertinent, I think it highly likely EC and Co would have readily swept me up into their "chronic fatigue" net, conflated it with with ME/CFS, and then triumphantly proclaimed how my exercise regime had cured my ME . I really don't think they realise how profound the distinction is! And as a consequence I suspect they really do believe they are fixing people with ME ... "It's all the same thing" I'm sure they think, and "these agitators just think it's something different". They really just don't get it. As a slightly amusing aside, and gives a clue I suppose to how unused to exercise I was, on my first day of cycle commuting (having car shared for many years previously), I decided I'd better stoke up on fuel well, before embarking on my new energetic activity. So I did myself a good fry up, in grand English breakfast style. Later, halfway up one of the hills, I had to stop and came perilously close to throwing up at the roadside! Rapidly learned my lesson that that was not the right way to prepare for my cycle commute . Edit: Re-reading this, makes me realise what a desperately misleading name, as so many others have already said, Chronic Fatigue Syndrome is! Because in citing my own experiences above, I would have described myself as feeling very fatigued, even though my physical capabilities were still fine. No wonder it's such a b*lls up!