What should you know about intense fatigue?

Fatigue is more than ordinary sleepiness when it limits concentration, movement or everyday tasks. Poor sleep, an infection, missed meals, dehydration and sustained stress can drain energy. Anaemia may cause fatigue with breathlessness, paleness or palpitations. Coeliac Disease can affect energy alongside digestive symptoms. Chronic Kidney Disease may cause tiredness with swelling or changes in urination. Alcohol Use Disorder, Burnout, Chronic Fatigue Syndrome and COVID-19 are other possible contexts, each needing a different assessment.

Keep a simple log of sleep, meals, fluids, activity, mood, medicines and associated symptoms. Aim for a regular sleep routine, gentle activity within your limits, balanced meals and steady hydration. Avoid using excess caffeine to push through exhaustion and do not stop prescribed medicines without advice. If fatigue follows an illness or continues despite adequate rest, arrange a clinical review rather than trying to diagnose the cause alone.

Book an appointment when fatigue is unexplained, worsening, lasts beyond a short illness, or affects work, study, driving or self-care. Seek urgent help for chest pain, severe breathlessness, fainting, new confusion, one-sided weakness, black or bloody stools, or thoughts of harming yourself. Marked thirst with very little urine or inability to keep fluids down also needs prompt care.

Ask what common causes fit your symptoms; whether sleep, mood, diet, medicines or recent infection are contributing; whether examination or blood tests are appropriate; and how to pace activity safely.