Actually, the link in
@Kalliope 's post #7 about sustained arousal is worth looking at and considering. It is attempting to integrate a physical cause and perpetuating factors with a psychological cure.
I don't think sustained arousal is the cause of ME but the linked paper is (at least to me) the most sophisticated explanation I've seen of this theory. It does not however include PEM as part of the symptomology.
It would not be such a bad thing to consider this as a researcher except for the fact that any research that is done with this model inevitably is poorly designed and executed. If it was further investigated properly we could probably dispense with it and move on. I would be interested to know what a proper trial of this would look like.
They make no explanation for how a psychological therapy fixes sustained arousal nor any details of how specifically the various relevant factors create the condition.
Given that, I think the only way we can show that they are on the wrong track with believing in their cure is to show that there is not enough real data to back up their claims and given what many patients report regarding harm when forced to do more or disregard their symptoms this cannot stand. But also, they need to provide some explanation of how they believe music or LP can change or fix what they describe as SA. It makes no sense at all to me.
Also, given that a doctor may explain sustained arousal to someone with ME I would not be surprised if someone newly ill found this compelling and reasonable although that wouldn't extend to how the medics think it should be treated but no doubt most people would not question this.