It was Labor Day weekend 2021 when Sara Walsh, who was 24 weeks pregnant with twins, began to experience severe lower back pain.
On Wednesday, a few days later, a maternal-fetal specialist near her home in Winter Haven, Florida, diagnosed Walsh with twin-to-twin transfusion syndrome, a rare complication that occurs when multiple fetuses share blood unevenly through the same placenta. The doctor told her that the fetuses were experiencing cardiac issues and that she should prepare for treatment the following day, Walsh said.
