WATCH: Nellie Bowles on a Mother’s Shocking Alzheimer’s Misdiagnosis

Paralyzing migraines, random bouts of vertigo, extreme fatigue and, eventually, forgetfulness: For years, Sean Fischer’s mom struggled with symptoms no doctor could totally explain. “Hanging over my childhood was the perpetual worry—the fear—about Mom’s mysterious health issues,” he wrote in his recent story for The Free Press. “No one paused to wonder …