Parents fear for young daughter's safety as her behavior changes dramatically; Rare disorder may explain 11-year-old's sudden odd tics and moodiness; Why is PANDAS so controversial? Medical professionals are divided.
Barbara Walters, Chris Connelly, Christopher Chacon, Diane Sawyer, Elizabeth Vargas, Fantasia Barrino, Geraldo Rivera, Hugh Downs, Liza Minnelli, Mariah Carey, Patty Duke
Documentary
Watch 20/20 Season 2018 Episode 32 M4uhd for free in HD quality. Stream instantly with English subtitles — no download or account needed.