Demi Lovato is continuing to open up about her recent stint in rehab and the basis for her stay there.

First, the singer/actress admitted she’s battled an eating disorder for years, later adding that she’s cut herself since the age of 11 and is leaving Sonny with a Chance to battle these demons.

Now, the 18-year is opening up again to the public, making an admission to People: “I never found out until I went into treatment that I was bipolar,” she tells the magazine. “There were times when I was so manic, I was writing seven songs in one night and I’d be up until 5:30 in the

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