Editor’s note: Welcome to our ThirdAge feature that gives you a chance to play medical sleuth as we share the details of what happened when a patient presented with a problem that stumped the physician at first. The first week of this riddle, the patient reported her symptoms to her PCP. The doctor proceeded with… Continue reading Solve the Medical Riddle: She Has Had a Constant Headache for Two Weeks and Her Pupils Are Not the Same Size, Fourth Week