Two Rare Coexisting Diseases and an Uncommon Presentation: Migraine, and Neuromyelitis Optica Presented with Cervicogenic Headache - A Case Report

Case ReportA 46-year-old female presented with blurred vision in the right eye for five days and a history of worsening chronic headaches.Initially diagnosed with migraine without aura 20 years ago.However, the patient's headache pattern changed three years prior, characterized by left cervical pain radiating to the left side of the head and triggered by forward head positioning.A neurological examination revealed horizontal nystagmus, left upper extremity weakness, hyperreflexia, bilateral Babinski signs, hypoesthesia in left C8-T1 dermatomes,