czjtreatment230.jpg Catherine Zeta-Jones checked into a rehab facility earlier this month to seek treatment for Bipolar Disorder, her rep has confirmed.

"After dealing with the stress of the past year, Catherine made the decision to check in to a mental health facility for a brief stay to treat her Bipolar II Disorder," her rep added. "She’s feeling great and looking forward to starting work this week on her two upcoming films."

The 41-year-old actress spent about five days at the unidentified facility, and a source tells the mag, "There's no question it's been a stressful year. Catherine has had deal with [husband Michael Douglas'] illness and that's been hard. She went in for a few days because she's about to start working, and wanted to make sure she's in top form, which she is." After struggling with throat cancer for nearly six months last year, Douglas announced in January that he was cancer free, and Zeta-Jones has remained by his side throughout the ordeal.