It usually starts with a question you can't quite shake. Maybe you called your parent in Lakeway and they sounded fine, cheerful even, but something about the conversation left you uneasy. They repeated a detail. They couldn't remember if they'd eaten lunch. They mentioned a neighbor you've never heard of as though you'd known them for years.
You call your mom on Tuesday, and she sounds fine. You call again on Thursday, and she mentions, almost casually, that she tripped over the rug in the hallway. She says it was nothing. But something about the way she brushes it off stays with you long after you hang up.
Your parent's most recent checkup went fine. Vitals are stable. Prescriptions are managed. But somewhere between the lab results and the ride back, a quieter concern settles in, one that doesn't show up on a chart.