Just three months after Michael Douglas told “Today’s” Matt Lauer, “I’ve got (cancer) beat,” his wife, Catherine Zeta-Jones, has checked herself into a mental health facility. The actress, who has been by Douglas’ side since he was diagnosed with throat cancer last fall, is seeking treatment for bipolar II disorder, her rep confirms to CNN. Bipolar II disorder, which, according to the Mayo Clinic, is less severe than bipolar I disorder, causes irritability and mood swings occurring as often as several times a day, or as seldom as a few times a year. “After dealing with the stress of the past year, Catherine made the decision to check into a mental health facility for a brief stay to treat her bipolar II disorder. She’s feeling great and looking forward to starting work this week on her two upcoming films.” Her upcoming films include dramedies “Playing the Field” and “Lay the Favorite." Source: CNN