Dealing with fatigue

Fatigue is more than feeling sleepy: it may feel like low energy, slowed thinking, or difficulty completing ordinary tasks. A short-lived episode can follow disrupted sleep, stress, a viral illness, dehydration, or a demanding change in routine. Ongoing fatigue can also occur with anaemia, coeliac disease, chronic kidney disease, burnout, alcohol use disorder, or chronic fatigue syndrome. COVID-19 may cause tiredness during illness or recovery. Fatigue alone does not identify one condition, so the pattern and accompanying symptoms matter.

Keep a consistent wake time and make the bedroom quiet, dark, and comfortable. Eat at regular intervals, include protein and fibre, and drink fluids throughout the day. Break demanding jobs into smaller tasks, place rest periods between activities, and choose gentle movement such as a short walk if it does not worsen symptoms. Limit alcohol and avoid using stimulants late in the day. Track sleep, activity, medicines, mood, and symptoms for several days; this gives a clinician useful context.

Arrange a medical assessment if fatigue lasts, keeps returning, or affects work, study, driving, or self-care. Seek urgent help for fatigue with chest pain, severe breathlessness, fainting, new confusion, one-sided weakness, or difficulty staying awake. Contact a clinician promptly if it comes with unexplained weight change, persistent fever, bleeding, black stools, marked thirst, or much less urine. Do not drive if exhaustion makes it hard to concentrate.

Could my medicines, sleep, mood, diet, or another illness explain this fatigue? Which symptoms should I record, and what examination or tests might clarify the cause? What level of activity is suitable while I recover?