LIFE WITH ME/CFS
An ME/CFS symptom tracker that listens.
When even explaining your day takes energy, talk or type a little to Jetty. Keep the details of ME/CFS together, at a pace that fits you.
Your symptoms, in your own words. Available on iPhone.
UNDERSTANDING YOUR SYMPTOMS
What are the symptoms of ME/CFS?
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic illness that can substantially limit everyday activity. It involves more than tiredness: symptoms can worsen after physical or mental effort, and sleep may not feel restorative. Thinking difficulties, pain, and symptoms when upright can also occur. Experiences and levels of disability vary from person to person.
Overwhelming fatigue
Deep exhaustion can limit ordinary activities and may not improve with rest.
Post-exertional malaise
Physical or mental effort can worsen symptoms, sometimes with a delay.
Unrefreshing sleep
You may wake feeling unwell or unrested despite a full night in bed.
Thinking difficulties
Concentration, memory, or finding the right words may become harder.
Upright symptoms
Sitting or standing may bring dizziness, lightheadedness, or other worsening symptoms.
Pain and headaches
Muscle aches, joint pain, or headaches may accompany changes in energy.
Symptoms can have more than one cause, and experiences vary. A symptom list cannot tell you whether you have ME/CFS. A healthcare professional can assess your symptoms and decide which tests or follow-up are appropriate.
YOUR DAY-TO-DAY, TOGETHER
Less to remember. More to talk about.
A symptom journal gives the day-to-day details of life with ME/CFS a place to go. With Jetty, you can talk or type about your symptoms and daily life while they’re still fresh.
Jetty keeps your health notes organized over time, helping you look back on changes and prepare the symptom history and questions you want to bring to your next appointment.
What to put in your symptom journal
When you have the capacity, note what you did, when symptoms changed, and how long the worsening lasted. A brief voice note can preserve details without requiring a complete daily log.
Include thinking tasks, time upright, sleep quality, and help you needed with everyday activities. Jetty can organize these observations for a conversation about your individual limits and symptom changes over time.
Questions you might bring: Could this delayed worsening be post-exertional malaise? What details about time upright, sleep, and recovery would be most useful for us to review?
A LITTLE MORE CLARITY
ME/CFS symptoms & tracking FAQs
About this information
CDC ME/CFS symptom and clinical-care guidance. This is general education, not a diagnosis or a treatment plan.
Content updated October 13, 2026 · Jetty Health
You don’t have to keep it all in your head.
Start with how you feel today. Let Jetty help you keep a clearer picture of life with ME/CFS.
Jetty helps you organize your health information. It does not diagnose or treat medical conditions.