ME/CFS is a long-term illness in which exertion can markedly worsen symptoms. This setback is called post-exertional malaise, or PEM, and requires careful management of available energy.
- A major new limitation caused by exhaustion that does not go away with ordinary rest.
- PEM: increased symptoms after exertion that used to be manageable, often with a delayed onset.
- Keep a brief record of activities that cause symptoms; find a manageable baseline without repeatedly testing your limits.
- Break tasks into small steps and plan rest before and after demanding periods.
- Make a GP appointment for unexplained exhaustion and clear setbacks after exertion that persist for weeks.
- For urgent GP care outside office hours, call HAP 9252. Call Ambulance 912 only for an immediate threat to life.
Article status
- Version
- 1.0
- Purpose
- General medical information
- Last updated
- Sources consulted
- 8
Have you found an error or unclear information? Give feedback on this article.
General information, not personal medical advice
This article has been carefully prepared but may contain errors or become outdated as medical knowledge changes. It does not replace diagnosis, examination or treatment by your own GP. Always discuss personal questions and starting, stopping or changing medicines or treatments with your own GP.
For a life-threatening situation, call Ambulance 912. For urgent care outside office hours, call HAP 9252.
Read the full disclaimerYour response
Two anonymous questions
Did you find what you were looking for?
Do you now have a clearer idea of your next step?
Share article
Search by type of care, organisation, name or district.
