Acne anaemia angina appendicitis arthritis asthma atrial fibrillation back pain bowel cancer breast cancer bronchitis cancer chest infection chickenpox chronic kidney disease chronic obstructive pulmonary disease (COPD) coeliac disease common cold COVID-19 Crohn's disease dementia dental abscess type 1 diabetes type 2 diabetes deep vein thrombosis (DVT) ear infection earwax build-up eczema endometriosis epilepsy erectile dysfunction fibromyalgia flu food allergy gallstones gastritis gout heart attack heart failure high blood pressure high cholesterol HIV/AIDS impetigo indigestion infertility inflammatory bowel disease insomnia iron deficiency irritable bowel syndrome (IBS) kidney infection kidney stones laryngitis liver disease lung cancer lupus Lyme disease measles Ménière's disease meningitis menopause migraine multiple sclerosis myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) norovirus obesity osteoarthritis osteoporosis Parkinson's disease pneumonia prostate cancer psoriasis rheumatoid arthritis ringworm sciatica sepsis shingles sinusitis skin cancer sleep apnoea sore throat stomach ache stomach ulcer stroke tonsillitis urinary tract infection (UTI) varicose veins. Agoraphobia anorexia nervosa antisocial personality disorder anxiety disorders attention deficit hyperactivity disorder (ADHD) autism spectrum disorder binge eating disorder bipolar disorder body dysmorphic disorder borderline personality disorder bulimia nervosa claustrophobia conduct disorder cyclothymia depression dissociative disorders eating disorders generalised anxiety disorder (GAD) health anxiety hoarding disorder major depressive disorder narcissistic personality disorder obsessive compulsive disorder (OCD) panic disorder personality disorders phobias post-traumatic stress disorder (PTSD) postnatal depression postpartum psychosis psychotic disorders schizophrenia seasonal affective disorder (SAD) selective mutism social anxiety disorder specific phobias stress substance use disorder.