Long COVID fatigue

Overview

Long COVID fatigue is an extreme tiredness that lasts for weeks or months after a COVID-19 infection. It is one of the most common symptoms of Long COVID, a condition where symptoms continue beyond the initial illness.

Yes, fatigue is one of the most common symptoms of Long COVID. Many people who had COVID-19 experience it to some degree.

Long COVID fatigue can affect anyone who had COVID-19, including children. It is more common in adults, and women may be affected more often than men.

Symptoms

Common symptoms

• Extreme tiredness and lack of energy
• Feeling drained after small tasks
• Difficulty concentrating or 'brain fog'
• Muscle aches or joint pain
• Headaches
• Sleep problems, such as not feeling refreshed after sleep

Symptoms in children

• Trouble keeping up with schoolwork or play
• Irritability or mood changes
• Sleeping more than usual

Symptoms in older adults

• Greater difficulty with daily activities
• Increased risk of falls due to weakness
• Confusion or memory problems

Causes

Main causes

• The exact cause is not fully known. It may involve the body's immune system staying active after the infection.
• Inflammation or damage to cells and organs from the virus.
• Changes in how the body produces or uses energy.

Risk factors

• Having a severe COVID-19 illness initially
• Being older
• Having other health conditions such as diabetes, heart disease, or lung disease
• Being female

When to see a doctor

See a doctor urgently if:

• If you have symptoms that could be an emergency (see emergency section).
• If fatigue is so severe you cannot get out of bed or care for yourself.

Book a routine appointment if:

• If fatigue lasts more than a few weeks and affects your daily life.
• If you have other symptoms like ongoing cough, chest pain, or trouble thinking clearly.
• If you are concerned about your recovery.

Diagnosis

There is no single test for Long COVID fatigue. Doctors diagnose it by asking about your symptoms, medical history, and ruling out other conditions that can cause tiredness.

Tests that may be done

• Blood tests to check for anemia, infection, or other issues
• Heart tests such as an ECG (electrocardiogram)
• Lung function tests if you have breathing symptoms
• Referrals to specialists like a physiotherapist or psychologist

What to expect at your appointment

Your doctor will ask about when your fatigue started, how it affects you, and what makes it better or worse. They may also ask about your sleep, mood, and activity levels. It may take a few visits to get a clear picture.

Treatment

Treatment focuses on managing symptoms and helping you gradually return to normal activities. There is no medicine that cures Long COVID fatigue, but many steps can help you feel better.

Self-care at home

• Pace yourself: break tasks into small steps and take rest breaks.
• Try to keep a regular sleep routine.
• Manage stress with relaxation techniques like deep breathing or meditation.
• Gentle movement, such as short walks or stretching, as you are able.
• Eat a balanced diet with plenty of fruits, vegetables, and protein.

Medical treatments

Your doctor may refer you to a specialist for a structured rehabilitation program. This could include advice from a physiotherapist on graded exercise, or from an occupational therapist on energy conservation. In some cases, medicines may be used for other symptoms like pain or sleep problems, but always talk to your doctor before taking anything.

Living with this condition

Plan your day around your energy levels. Do important tasks when you feel best, and rest when you need to. Don't be afraid to ask for help from family or friends.

Lifestyle tips

• Set a consistent bedtime and wake-up time.
• Limit caffeine and screen time before bed.
• Practice gentle activity like yoga or Tai Chi.
• Take short, frequent rest breaks during the day.

Diet and exercise

Eat a healthy diet with plenty of whole foods. Start with very gentle exercise, like 5–10 minutes of walking, and increase slowly. Listen to your body and stop if you feel worse.

Mental health and emotional wellbeing

Feeling frustrated, anxious, or sad about fatigue is common. Talk to a mental health professional if your mood affects your daily life. Support groups can also help you connect with others who understand.

Prevention

It is not known for sure if Long COVID fatigue can be prevented. Reducing your risk of getting COVID-19 – for example, through vaccination and wearing masks – may lower the chance of developing Long COVID.

Vaccines

COVID-19 vaccines help prevent severe illness and may reduce the risk of Long COVID, but they do not guarantee you will not develop fatigue or other symptoms.

Complications

If left untreated

• Difficulty working, studying, or caring for yourself
• Muscle weakness and deconditioning from inactivity
• Depression or anxiety
• Problems with memory and concentration that affect daily life

Long-term outlook

Most people with Long COVID fatigue improve over time, though it can take weeks, months, or longer. Recovery is often gradual. With the right support, pacing, and medical care, many people return to their normal activities. Be patient and kind to yourself.

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