The 17-year-old daughter of Rosie O’Donnell has been missing for a week, according to the comedienne/actress. Chelsea O’Donnell left the family’s Nyack, N.Y home on Aug. 11 with her 6-month-old therapy dog Bear after she stopped taking her medication, according O’Donnell’s official website Rosie.com. O’Donnell said on Twitter Tuesday that her daughter might be in New…