What should you know about depression and fatigue?

Depression-related fatigue can feel like low physical energy, mental slowing or effort that is hard to start. Sleep may be poor or excessive, and concentration, appetite and motivation may change. Insomnia, daytime sleepiness, anxiety, anaemia, thyroid disease, infection, medication effects and other health problems can also cause fatigue. The pattern and associated symptoms matter more than tiredness alone.

Keep a short record of energy, sleep, mood, meals, activity and medicines. Use a regular routine, break tasks into manageable parts, eat regularly, drink enough fluids and add gentle movement if safe. Arrange a GP appointment when fatigue persists, worsens, follows an illness or interferes with work, self-care or relationships. Assessment may address mood, sleep and physical causes together.

Get urgent help for severe breathlessness, chest pain, fainting, new confusion, one-sided weakness, black stools or rapidly worsening illness. Seek immediate mental-health support if low mood includes suicidal thoughts, self-harm urges or feeling unable to stay safe.

Ask which symptoms suggest depression, whether sleep or medicines could be contributing, whether blood tests are appropriate, and how to build a gradual recovery plan without overexertion.