Well, it wouldn't really fit the name of "malaise", so if only for that reason, it wouldn't seem to fit. But for the reasons I said, I think that is kind of arbitrary.Even it vomiting is the only symptom that happens? So you go from baseline fatigue, OI, etc., do an exertion, and then start throwing up a day later, but with no changes to your other symptoms? Is the vomiting then PEM?
Just saying that if fatigue+brain fog+vomiting is considered PEM, then vomiting is considered connected to the PEM process, right? It's part of the landscape of associated symptoms. So if there exist people who have even more "malaise-associated" symptoms as part of PEM, it seems probable that there are people with fewer symptoms, such as only vomiting.I don’t understand what you mean here, I might be too foggy atm.
A forum like S4ME for one. Disability benefits. Support from family and friends because you have a real "scientific" symptom.But what are they missing out on if not included in PEM?
Because the diagnosis is arbitrary as it is, and is just describing a heterogenous collection of symptoms. Strict criteria exist for research. If one day, the research finds that those who fit CCC have one condition and those who only have delayed fatigue fit another, then they can be called different things.And why is even «not wanting people to miss out» an argument for expanding a diagnosis?
I guess it's possible if clinical criteria got watered down, it could seep into research that just uses clinical criteria and add noise. But I'm not sure if any serious biological research is doing this.