Our Symptom checker provides clinical advice on what to do next based on your symptoms.
Trusted information about adrenal fatigue, which is not an official diagnosis, as well as causes and ways of managing fatigue in general.
Chronic fatigue syndrome (CFS)
Trusted information on chronic fatigue syndrome (CFS), also known as Myalgic Encephalitis (ME), for which there is no simple cause or cure, including symptoms, and how it is managed.
Self-help tips to fight mild fatigue
Trusted information and tips on fighting fatigue including eating and drinking, getting more exercise and sleep, reducing stress, and losing weight.
Awareness of Chronic Immunological and Neurological Diseases
International Awareness Day for Chronic Immunological and Neurological Diseases aims to raise awareness and funds for those associated with ME/CFS and fibromyalgia.
Links to trusted information about jet lag.
Hepatitis B symptoms
Most people who have hepatitis B don't have symptoms when they are first infected. Learn about the symptoms you may encounter in the long term.
Glandular fever symptoms
Glandular fever (also called the ‘kissing disease’) is an infectious disease which is common in teenagers and young adults. Find out more about the symptoms of glandular fever.
Lung cancer symptoms
Information on lung cancer signs and symptoms, plus links to trusted resources.
Leukaemia symptoms are often mild at first, but slowly worsen over time. Find out more about common and uncommon symptoms of leukaemia, plus links to trusted resources.
HIV infection and AIDS symptoms
HIV has a range of symptoms that can be difficult to tell apart from other viral infections. Learn more about the symptoms you should watch out for.
Iron deficiency symptoms
People who have an iron deficiency can often feel tired, dizzy or short of breath. Find out more about common iron deficiency symptoms by reading our trusted partner pages.