2020; Adult; Agitation; Angiography; Antibiotics; Atrial fibrillation; Beta-blockers; Carbimazole; Cardiology; Cardiomegaly; Cardiomyopathy; Diarrhoea; Digoxin; Dyspnoea; Echocardiogram; FT3; FT4; Female; Fluid repletion; Furosemide; Glucocorticoids; Goitre; Graves' disease; Heart failure; Hydrocortisone; Hyperhidrosis; Ibuprofen; January; Levothyroxine; Lisinopril; MRI; Male; NSAID; Palpitations; Pericardial effusion; Peripheral oedema; Prednisolone; Propranolol; Propylthiouracil; Radioiodine; Radionuclide therapy; Radiotherapy; Ramipril; Steroids; TSH; TSH receptor antibodies; Thyroid; Thyroid antibodies; Thyroid storm; Thyroidectomy; Thyrotoxicosis; Thyroxine (T4); Tremulousness; Triiodothyronine (T3); Unique/unexpected symptoms or presentations of a disease; United Kingdom; Weight loss; White; X-ray