Causes of tiredness in females

Notice whether the problem is sleepiness, low physical energy, or difficulty concentrating. Heavy menstrual bleeding can reduce iron stores and contribute to anaemia. Pregnancy, disrupted sleep, caregiving, work strain and low mood may also drain energy. Recent fever, cough, diarrhoea or reduced fluid intake can point towards infection or dehydration. Persistent symptoms can occur with thyroid, kidney or digestive conditions, including coeliac disease, and deserve a broader review.

Keep a brief record of sleep, bleeding, meals, medicines, mood and associated symptoms. Aim for regular meals, fluids and a consistent sleep routine, while avoiding alcohol as a way to cope with exhaustion. Do not start iron or high-dose supplements without advice, because the cause of low energy should be checked. A clinician may discuss a blood count, iron assessment, pregnancy test or other tests based on your history.

Arrange medical advice if tiredness persists, interferes with daily activities, follows heavy bleeding, or comes with weight change, breathlessness, palpitations, fever, swollen glands or marked low mood. Seek urgent help for severe breathing difficulty, fainting, new confusion, chest pain or weakness on one side. Fatigue after COVID-19 or with chronic fatigue syndrome may need tailored assessment rather than pushing through symptoms.

Could my periods, pregnancy, medicines, sleep or mood explain this tiredness? Which symptoms would make blood tests useful? Should we consider anaemia, coeliac disease, kidney disease or another cause? What level of activity and rest is sensible while I recover?