I think part of the problem with arguments about whether PEM must be delayed to call it PEM may be the cumulative effect of all exertion contributing to PEM, so was it the shower I had yesterday, or the chat with a friend today that triggered it? If PEM sets in immediately after the friend visits, is it immediate PEM, or would it have happened anyway as delayed PEM from yesterday's shower?
I tried to cover this in the PEM fact sheet. Have you read the S4ME factsheet on PEM,
@richie and the discussion that preceded it? We also have at least one PEM discussion thread.
