ME/CFS symptom checkMany symptoms.
One clearer picture.
Organise fatigue, responses to exertion and other symptoms. Get a summary of your answers for your medical appointment.
Start check in German- About 5–10 minutes
- Free
- No sign-up
This check organises symptoms using the Canadian Consensus Criteria. It does not diagnose ME/CFS or establish whether all criteria are met.
See what your summary looks like- Post-exertional malaise (PEM)
- 2 symptoms reported
- Sleep
- 1 symptom reported
- Concentration
- 2 symptoms reported
An excerpt from the symptom groups. Counts document your answers; they do not establish a diagnosis.
- 1
Record your symptoms
Answer questions about fatigue, PEM, sleep and other symptoms.
- 2
Prepare for the conversation
Your answers are organised by symptom group to help guide a discussion.
- 3
Bring your summary
Download your result as a PDF and discuss it at your next medical appointment.
Here in your browser
For your next medical appointment.
The summary shows the symptoms you reported. It helps you remember what you want to discuss at your appointment.
- Fatigue and post-exertional malaise (PEM)
- Sleep, pain and concentration
- Other symptoms organised by group
Download your result as a PDF. It is created on your device and nothing is uploaded.
Can the ME/CFS symptom check diagnose ME/CFS?
No. It structures symptoms against known criteria. ME/CFS is a diagnosis of exclusion and requires medical assessment.
When is this check useful?
It is useful when fatigue, post-exertional worsening, sleep problems, pain, or cognitive symptoms appear together and you want to clarify the pattern.
Why does PEM matter so much?
PEM changes interpretation because symptoms can worsen disproportionately and with delay after physical, cognitive, or emotional exertion.
Which online ME/CFS test is useful?
A useful online check should separate PEM, sleep, pain, cognitive symptoms, and autonomic, neuroendocrine, or immune symptoms. It should also state clearly that it does not diagnose ME/CFS.
What is the difference between the ME/CFS symptom check and FUNCAP-27?
The ME/CFS symptom check structures answers along the symptom groups of a criteria framework. FUNCAP-27 describes functional capacity and daily limits over time.
Why is fatigue alone not enough for ME/CFS?
Fatigue occurs in many conditions. For ME/CFS, the pattern with PEM, reduced capacity, sleep, pain, and neurocognitive symptoms is more relevant.
Background & sources
Based on the 2003 Canadian Consensus Criteria, this check organises the symptoms covered by its questions. Diagnosis requires clinical assessment of additional criteria, illness duration and other possible causes.
- Canadian Consensus Criteria overview
NCBI/IOM overview of the Canadian Consensus Criteria and core symptom clusters.
- Questionnaire methodology
Elara guidance on purpose, limits, and safe use of questionnaire results.