This morning I had a full-blown, 15-minute “Am I losing it?” panic. I was reviewing my to-do list for the day: order birthday cupcakes, $ Store, call dermatologist. I stared at it like it had been written by a stranger. What is a $ Store? Had I completely lost the ability to label a basic errand? Had I forgotten the word “ATM” and scrawled “$ Store” as some kind of substitute?