Very nice, thank you Jonathan.
Some comments:
The ME/CFS acronym, rather than trying to find perfect words, reflects a desire for a pragmatic clinical term that recognises, but also transcends, both various historical medical views and the insights of people with ME/CFS who, importantly, have made major contributions to research and the level of scientific rigour.
I still don't understand how the ME/CFS acronym transcends the insights of people with ME/CFS.
‘Complex’ tends to tacitly imply unspecified psychological factors, which just obscures things (and was not intended).
Second use of 'obscures', and I'm not sure that it is the best word to use here. You could just say ''Complex' tends to tacitly imply unspecified psychological factors, which was not intended'.
Firstly, people with ME/CFS have persistent unpleasant and disabling symptoms
Unpleasant symptoms in ME/CFS include nausea, orthostatic intolerance, pain, (hence ‘malaise’) and sensitivity to environmental stimuli such as light, sound, physical contact and odours. There is also difficulty organising thought processes, which for many is central to their disability.
I and others have found the 'unpleasant' a bit jarring, as the symptoms can be a good deal worse than unpleasant. Also, how many symptoms are not unpleasant? Not many I think. I think 'unpleasant' could just be deleted, without any loss of sense. I agree with others that malaise, the feeling of being unwell, is different to nausea, OI and pain, and is not the sum total of those. Just to confuse matters, I rarely feel nauseous.
I don't think that 'difficulty organising thought processes' is quite right. I don't have problems
organising my thought processes, apart from when I have more global problems with my thought processes. Organising thought processes seems specific and almost implies a mechanism. I think it might be better to just say 'difficulty with cognition' or 'difficulty with cognitive processes'.
There is no mention of muscle weakness and fatiguability in this initial listing of symptoms. I think it is an important aspect of the illness and potentially an important clue. I think we saw it in the intramural study, people with ME/CFS could not sustain muscle use in the way that the healthy controls could. I think there was a hand grip study that found it too. It's not related to fitness, as some days the weakness and rapid fatiguability is there, and other days it is not. There is mention of fatiguability later in the report, but it does not make it clear that fatiguability is a characteristic of ME/CFS.
Others have had parenteral and enteral feeding support and been weaned off (Baxter et al., 2021).
I really don't like 'weaned off'. It makes it sound as though the person has needed help to give up something that they wanted, and implies something of moving the person towards an adult state. I know it wasn't meant that way, but it does have connotations. You could just say 'Others have had parenteral and enteral feeding support and later have been able to return to oral feeding.'
Claims of benefit from psychotherapy are hard to square with there being no evidence for any reduction in the prevalence of the illness and people are still dying of avoidable dehydration and starvation.
This would be better slightly reworded:
"... with there being no evidence for any reduction in the prevalence of the illness and with people still dying of avoidable dehydration and starvation."
The advantage of ME/CFS is that it is overtly a pragmatic compromise term that implies an illness with a reasonably well-established epidemiology that we understand nothing about and for precisely that reason need to turn our attention to.
I don't think there is a well-established epidemiology - we desperately need better data. Also, not knowing about the illness is not the only or even the best reason for people to turn their attention to it. It is also quite common, and life-disrupting. I'd write that sentence as
" ...that implies a reasonably well-delineated and relatively common debilitating illness that we understand very little about. For precisely that reason, we need to turn our attention to it."
The time course of deterioration following exertion is not explained by any currently understood type of mechanism.
I don't think you need 'type of'
Until then there is a need to get as clear as possible the clinical concept we are trying to explain, so that research studies have the very best chance of finding clues to what is going on.
I think that sentence reads better as
"Until then, there is a need to make the clinical concept as clear as possible so that research studies have the very best chance of finding clues to the underlying pathology."
Thanks again for your effort on this.