When the news came out that Disney’s Demi Lovato checkedherself into a treatment facility for “mental and physical issues,” it waspretty hard for everyone to believe. Turns out, she has been dealing with herproblems since she was eight years old!

The Sonny With A Chance star opened up to ABC’s Good MorningAmerica’s Robin Roberts about her “unhealthy relationship with food” that later developed into her habit of cutting. Itall began in elementary school when Lovato was constantly bullied by her fellowclassmates.

Demi Lovato in LAX airport

“I’ve spoken openly about being bullied throughout the past few years,but one thing that I’ve never been able to feel comfortable talking about wasthe effects that it had on my life, afterwards,” Lovato tells Roberts. “Iliterally didn’t know why they were being so mean to me.  And when I would askthem why, they would just say, `Well, you’re fat.’”

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After developing her eating disorder, to take away theguilt she started the process of self-mutilation. Demi explains, “I was compulsively overeating when I was eight years old. So, I guess,for the past 10 years I’ve had a really unhealthy relationship with food. Itwas a way of expressing my own shame, of myself, on my own body. I was matchingthe inside to the outside. And there were some times where my emotions werejust so built up, I didn’t know what to do. The only way I could get thatinstant gratification was through an immediate release on myself.”

After she finished her treatment, Lovato had the make a tough decision, but onethat she knew would be best for her. She decided to leave behind her televisioncareer and focus strictly on music. Doing so meant no longer returning toDisney’s Sonny With A Chance.

Related Article: Demi Lovato Not Returning to 'Sonny With A Chance'

When she made the announcement to her fans, shesaid, “It made sense for me to go ahead and leave the show to focus on mymusic. It’s kind of sad for me that a chapter of my life has ended but therecouldn’t be a better time for me to move on,” Lovato says. “I don’tthink going back to Sonny would be healthy for my recovery. Being in front of acamera would make me nervous.”

Demi Lovato going to the studio, waving

Disney made a statement about Lovato's decision to leave the hit show and said, "We respect Demi's decision to focus full-time on her music and not immediately return to her acting career. She is a talented young woman and our hearts are with her as she continues to take action to improve her health and bounce back from adversity."

You can catch the full interview with Demi on Friday, April 22 at 10 PM ET on ABC. We wish Demi all the luck in the world! We love Demi!

What do you think about Demi's past and her leaving the show? Do you think it's a smart move?