title: Atypical migraine.
mesh_terms: D000783:Aneurysm / Q000175:diagnosis; D001007:Anxiety / Q000150:complications; D001794:Blood Pressure; D003000:Clonidine / Q000627:therapeutic use; D003937:Diagnosis, Differential; D004878:Ergotamine / Q000627:therapeutic use; D006261:Headache / Q000175:diagnosis; D006801:Humans; D008784:Methysergide / Q000627:therapeutic use; D008881:Migraine Disorders / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D013315:Stress, Psychological / Q000150:complications
chemical_list: D003000:Clonidine; D004878:Ergotamine; D008784:Methysergide