i would also just like to add that I get very disheartened to see infighting within the community over a name and that Sometimes this can feel like stigmatisation from within. This was one of the reasons I waited 2 years before joining PR....I didn't feel worthy enough, and was too weak to take a battering. I think the term CFS is like a red rag to some and is highly political, to others. ME as a label also has far more stigma associated with it (particularly in the UK)
I don't think much can be achieved by trying to prize the terms apart. I'm not sure there is any such thing as " pure me". This is all a matter of opinion and speculation until we have a better idea as to the cause and progression of the disease. To try and separate terms seems a waste of energy to me.
For instance, my OI was minimal when I was diagnosed in 2014 but I met all the criteria on the CCC. My OI is now a lot worse ....I have always had PEM...I didn't have sudden onset or a viral trigger....do I have ME or CFS? what did I have and is it different now? To some I am sure that I don't have " proper" ME. i am now comfortable with what I've got ...but I do find it sad when people go "off on one" over a name , particularly when ME doesn't really describe what we have any way.
I was diagnosed with CFS which means I can also use the alternative term ME in the UK. Part of the reason I don't use the term ME, is because I don't feel it has any more validity in the work place or with family or friends. I understand crawly et al will conflate fatigue because of the name, but I think they would do that regardless of the name until a biomarker is found and accepted anyway. For now I will just say I have CFS and if anybody attempts to separate them I will decide then what is best.
It might help you understand the controversy about CFS if you realise that ME was a properly defined disease that was originally described in epidemics but then was seen as occurring sporadically as well. There was an ignorant grab by psychologists but many researchers were showing how wrong that was. It was an exciting time with a lot of interest in research and money was available. Then suddenly there was AIDS and all the money disappeared. We had a patient organisation, local groups and a common set of symptoms; we all knew what we were talking about.
Then, suddenly there was an epidemic in the US, the CDC renamed the disease CFS and, in the UK, a group of psychiatrists I had never heard of redefined the illness as CFS but not the CDC version!!!
It was like a military coup.
CFS did not describe the illness at Tahoe and it did not describe ME, it was invented for political reasons. It is not like rheumatoid arthritis or Lupus, something that was developed by examining patients and finding commonality.
I still feel anger that the American researchers let it happen and ignored the years of work done in the UK. ME was epidemic and associated with polio for goodness sake, not fatigue at all. It has taken about twenty five years for the fact that exercise intolerance is the main feature to be acknowledged in the US but we knew that in 1959.
Many people who have been told they have CFS actually have ME, but that is more luck than judgement in most cases. You may equally have Behcets disease, coeliac disease, lupus, fibromyalgia, even one poor woman who had mad cow disease. You could be suffering a post viral syndrome or just be working too hard, overtraining as an athlete, the list goes on.
CFS is NOT a disease, it is a dustbin diagnosis for when doctors don't want to do proper testing to find out what is wrong.
That does not mean that someone who has been told they have CFS is not ill. Simply being tired all the time, the least you can have and be diagnosed, is horrible. The BPS brigade have thrived on the misleading construct CFS. It lets them confuse the issue and they want to dump all diseases of unknown origin into a single category of MUPS.
If you have been diagnosed with CFS, I and I think most of us, feel you have been let down by the medical system and it would be good if you did not have ME since, as defined by Ramsay "it has an alarming propensity to become chronic". Much better if you have something that will resolve and we will not hold that against you. We have had some good advocates who were initially misdiagnosed.
But I can recognise my illness in the description of 1959 whereas I have never experienced 6 months of fatigue so never met any of the definitions of CFS therefore I have ME.