Lung cancer symptoms - fatigue
The body may feel fatigued as a result of the presence of advanced cancer, even before treatment has begun. Fatigue is a feeling of being tired all the time when sufficient rest does not restore a sense of wellbeing.
Learn about fatigue as a symptom
Fatigue (National Cancer Institute)
Coping with cancer-related fatigue (American Society of Clinical Oncologists)
Coping with fatigue (Macmillan Cancer Support)