It sounds like Lindsey might not be feeling well:
Susan felt Lindsey's forehead and noticed that she felt a bit warm. She quickly grabbed a thermometer and took Lindsey's temperature, which confirmed her suspicion - Lindsey had a fever.
"Looks like you're not feeling well, sweetheart," Susan said. "I don't think you should go to school today."
Lindsey looked relieved, though she still seemed a bit tired and uncomfortable. Susan gave her some medicine to help with the fever and tucked her into bed, promising to check on her throughout the day.
