The document defines the typical and atypical symptoms of angina according to NICE guidelines. Typical angina is characterized by chest discomfort that is precipitated by physical exertion and eased by nitroglycerin within 5 minutes, along with some combination of the chest discomfort occurring in the front of the chest, neck, shoulder, or arms. Atypical angina has two of these characteristics. Non-anginal chest pain has one or none of these characteristics. The document then lists examples of descriptions and associated symptoms for both typical and atypical angina.