What should you know about physical exhaustion?

A short episode may follow demanding exercise, poor sleep, emotional strain, infection, heat, or not eating and drinking enough. Ongoing exhaustion can occur with anaemia, dehydration, coeliac disease, chronic kidney disease, or a prolonged illness. Burnout can bring deep tiredness alongside work-related stress and reduced motivation. Alcohol use can also disturb sleep and leave you depleted.

Notice when it started, whether rest helps, and whether symptoms such as fever, breathlessness, weight change, pain, bowel changes, thirst, low mood or poor sleep appear with it. The pattern helps a clinician decide whether examination or tests are needed; exhaustion alone does not identify one condition.

Keep a regular sleep and waking routine, drink fluids, eat balanced meals, and pace demanding tasks with planned rests. Gentle movement may help when you are able, but avoid pushing through severe weakness. Review new medicines, recent illness, stress, alcohol and changes in sleep with a healthcare professional rather than stopping prescribed treatment yourself.

Write a brief symptom diary covering energy, sleep, activity, food, fluids and associated symptoms. If exhaustion continues, worsens, or repeatedly interferes with work or self-care, arrange a GP consultation for a focused assessment.

Seek urgent help for exhaustion with chest pain, severe breathing difficulty, fainting, confusion, new one-sided weakness, or inability to stay awake. Prompt assessment is also appropriate when you cannot keep fluids down, pass very little urine, or have signs of a serious infection. Persistent fatigue after COVID-19 or another illness should be discussed with a clinician.

Ask what causes fit your symptom pattern, whether blood or urine tests may help, how to pace activity, and which warning signs should change your plan. Mention snoring, mood changes, bowel symptoms, bleeding, alcohol use and every medicine or supplement you take.