PEM
PEM is the term used to describe the reaction of your body to exertion when you have M.E/Long Covid.
Understanding it is key to understanding and managing the condition.
The best resources I have seen about PEM are at https://www.youtube.com/watch?v=cGQFGgb_PtA
Its from the Bateman Horne Centre https://batemanhornecenter.org/ who also have a lot of other interesting stuff on their web site.
Added 1/12/24