We are not an emergency service and you need to seek urgent medical attention if you experience the following while taking HRT: - Sudden severe chest pain (even if not radiating to left arm) - Sudden breathlessness or cough with blood-stained sputum - Unexplained swelling or severe pain in the calf of one leg - Severe abdominal pain - Severe prolonged headache (particularly if this is your first one), if it’s getting progressively worse, or if you are experiencing loss of vision - Change in speech or new weakness/numbness affecting one side or part of the body Your doctor will be able to advise you on further actions and whether you need to stop HRT or not.