In her heart, Lisa Davis knew something was wrong with her child.
A mother of four, she was no stranger to the challenges of childcare. But when her daughter Haley was 18 months old, she says, her behavior stood out as strange. And it seemed to revolve around an obsession with food.
"She was digging through the trash and eating everything, even raw meat," Davis recalls. "If we had had yogurt that day, she would lick the empty cup. She was eating butter. Anything she could find."
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