Index
What Is Post-Viral Fatigue Syndrome?
Post-viral fatigue syndrome is persistent tiredness and reduced physical or mental energy following a viral infection. Symptoms can last weeks to months and affect daily activities.
What Causes Post-Viral Fatigue Syndrome?
- Recent viral infection (e.g., influenza, COVID-19, EBV)
- Immune system response to infection
- Stress or prolonged illness may exacerbate symptoms
What Are the Common Symptoms?
- Persistent fatigue not relieved by rest
- Muscle or joint aches
- Difficulty concentrating (“brain fog”)
- Sleep disturbances
- Low-grade fever or sore throat in some cases
How Is It Diagnosed?
- Diagnosis is clinical based on symptoms and recent infection
- Blood tests may rule out other causes of fatigue
- Online GP consultations can provide assessment and advice; in-person review if symptoms are severe or prolonged
How Long Does It Last?
- Symptoms may last several weeks to months
- Gradual improvement is common, though some cases persist longer
Is It Contagious?
No. Post-viral fatigue syndrome is not contagious.
How to Feel Better and Recover Quickly
Self-Care at Home:
- Pace activities and avoid overexertion
- Rest and prioritise sleep
- Stay hydrated and maintain balanced nutrition
- Gentle exercise as tolerated
Treatment from a GP:
- Symptom management for pain, sleep, or mood disturbances
- Guidance on gradual return to activities
- Referral to specialist services if recovery is slow
When Referral Is Needed:
- Severe, persistent fatigue affecting daily life
- Symptoms not improving after several months
- Associated weight loss, night sweats, or other red-flag signs
When to Seek Urgent Medical Help
Seek urgent care if:
- Severe shortness of breath or chest pain
- Neurological symptoms (weakness, numbness)
- High fever or signs of infection
How Dr.Online UK Can Help
We offer:
- Same-day online GP appointments
- Assessment and initial management of nerve pain
- Prescriptions for pain management where appropriate
- Referral to neurology if needed
