One of the biggest issues with Myalgic Encephalomyelitis is Post Exertional Malaise. According to the health site VeryWell;
People with ME/CFS, and other conditions, have to be very mindful of both physical and mental exertion. A term that is used to describe this is called ‘Counting your spoons’. It is explained in this charming story where a young woman explains to her friend that managing her activity choices is like planning when to use her limited number of spoons.