When Your Child Suddenly Develops OCD, Anxiety or Tics

What if your child seemed completely normal—and then, within days, became a completely different person?

Sudden OCD. Severe separation anxiety. Food restriction. Tics or unusual movements. Sleep disruption. Frequent urination. Explosive behavior. Developmental regression. Even symptoms that appear irrational, obsessive, or psychiatric.

In this episode of Decoded, Elisabeth McKay breaks down PANS and PANDAS—two controversial areas of pediatric neuropsychiatry that force us to ask a critical question: Are we mistaking psychiatric symptoms for the origin of the problem?

PANS stands for Pediatric Acute-Onset Neuropsychiatric Syndrome. PANDAS refers specifically to Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections. But understanding the labels is only the beginning.

Elisabeth examines how sudden behavioral deterioration can potentially emerge from multiple directions. In some cases, psychological and environmental inputs may be involved. In others, infection, immune activity, inflammation, mold toxicity, or another medical process may warrant investigation. And sometimes, multiple factors may be operating at once.

In this episode:

What PANS and PANDAS actually mean

The defining importance of sudden symptom onset

OCD, food restriction, anxiety, aggression, regression, tics, and sleep changes

The history of PANDAS and its association with Group A strep

Why PANS is broader than PANDAS

Basal ganglia circuitry and the proposed immune hypothesis