An abrupt overnight change in a child’s behavior can be frightening, but it may not be “just a phase.” In this first episode of the three-part PANS/PANDAS series, Dr. Paula Kruppstadt explains these often misunderstood conditions that can trigger sudden anxiety, OCD, food restriction, and mood swings. She clarifies the difference between PANS and PANDAS, why brain inflammation is at the root, and how these conditions are frequently misdiagnosed. Families will find validation, understanding, and hope as they begin to navigate this complex journey.