Another question for which I apologise if it's already been asked:
If I contract a viral infection, I often find that my ME/CFS symptoms often seem to improve in the time between infection and the onset of symptoms of the virus. I gather that at least some other people with ME/CFS experience this too. I also find that my ME/CFS symptoms tend to improve when I have a fever, although they tend to be worse for a while following an infection, after the acute symptoms have subsided, which I have also heard others report.
@Jonathan Edwards Does your hypothesis offer any explanation for either of these observations?