When reality star Tila Tequila headed off for a monthlong stay at a Florida rehab center, she wasn't just dealing with drug addiction but an equally deadly eating disorder that left her frail and rail-thin, reports RadarOnline.

Earlier this year, the 30-year-old was hospitalized following a reported brain aneurysm and drug overdose that nearly killed her.

Sources say the overdose wasn't accidental. According to TMZ, Tila's roommate told police that Tila had "tried to kill herself all week." Following her hospitalization, the former MTV reality star agreed to enter rehab for substance abuse and treatment for other psychological issues -- which we now know to be an eating disorder.

"Tila is a really small girl to begin with so she usually weighs around 100 pounds, but at the height of her sickness she was down to around 75 pounds," a source close to Tila told RadarOnline. "She began to realize she had a problem when she started to see her bones protruding from her body. It really scared her."

But there's good news for the former MySpace queen: Tila was able to gain most of her weight back while in rehab, according to the source, who observes, "It's still an everyday battle for [Tila], but at least she's sober and healthy."

More celebrities who battled eating disorders:

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  • Katie Couric

    Katie Couric discussed <a href="http://www.nypost.com/p/pagesix/couric_admits_bulimia_battle_EpU1k3fLULVMYxC0WK306H">her own history with bulimia</a> on an episode of her new daytime talk show "Katie" while interviewing Demi Lovato, the <em>New York Post</em> reported. "I <a href="http://www.people.com/people/article/0,,20632657,00.html">wrestled with bulimia</a> all through college and for two years after that," Couric said while interviewing an expert in eating disorders, according to People.com.

  • Lady Gaga

    Gaga first spoke of her experiences with bulimia in February 2012 in an interview with Maria Shriver at a Los Angeles conference, saying "I used to throw up all the time in high school. So I’m not that confident. I wanted to be a skinny little ballerina but I was a voluptuous little Italian girl," the <em>New York Post</em> reported at the time. After a number of media outlets scrutinized her weight during a <a href="http://www.huffingtonpost.com/2012/09/19/lady-gaga-meat-corset_n_1897240.html">2012 European tour</a> she took to her website, <a href="http://littlemonsters.com/">LittleMonsters.com</a>, to reveal she <a href="http://www.huffingtonpost.com/2012/09/25/lady-gaga-weight-singer-bulimic-teenager_n_1913701.html">still struggles with bulimia and anorexia</a>. She announced the launch of an online forum she's calling the "Body Revolution" to help herself and others "triumph over insecurities," she wrote.

  • Jessica Alba

    In 2005, actress Jessica Alba told <em>Glamour</em>, "A lot of girls have eating disorders, and I did too. I got obsessed with it. When I went from a girl's body to a woman's body with natural fat in places, I freaked out. It makes you feel weird, like you're not ready for that body."

  • Katharine McPhee

    In 2006, singer Katharine McPhee talked to "Good Morning America" about her five-year battle with bulimia that nearly destroyed her vocal chords. At her worst point, McPhee binged and purged as many as seven times a day, she said just a few weeks ago. She said that appearing on "American Idol" saved her life by forcing her to confront her problem.

  • Jamie-Lynn Sigler

    "Sopranos" star Jamie-Lynn Sigler told "The Early Show" she had exercise bulimia: "I ended up starting at a routine which was, you know, 20 minutes in the morning and cutting back a little on my calories. And it snowballed into six or seven hours a day of exercise," said Sigler.

  • Kelly Clarkson

    In 2007, singer Kelly Clarkson told <em>CosmoGirl</em> that she was bulimic in high school. "The lesson I took from that was purely superficial, but that's what I grew up thinking for a long time. It wasn't smart, and I headed straight into an eating disorder and became bulimic for the next six months," she said.

  • Candace Cameron Bure

    In 2010, former "Full House" star Candace Cameron Bure revealed her battle with bulimia when she released her book titled, "Reshaping It All." She told <em>People</em> that she began binging and purging after "Full House" ended its run in 1995 and she was adjusting to life in Canada with her new husband, Russian-born NHL player Valeri Bure.

  • Kate Beckinsale

    In 2005 actress Kate Beckinsale opened up about her anorexic past. The star once weighed only 70 lbs and needed to attend five therapy sessions a week for four years to fight the disease.

  • Ashlee Simpson

    In 2005 singer and actress Ashlee Simpson told <em>Cosmopolitan</em> that as a young ballerina she struggled with anorexia. "I was around a lot of girls with eating disorders, and I actually had a minor one myself," says Simpson, who at one point stood 5'2" but only weighed 70 lbs. Simpson said her parents stepped in and made her eat, adding that family support really helped her.

  • Lindsay Lohan

    In 2006 after the public watched her shrink before their eyes, actress Lindsay Lohan confessed to <em>Vanity Fair</em> that she was "making herself sick," which many took as a reference to bulimia. She told the magazine that Tina Fed and SNL producer Lorne Michaels staged an intervention telling her she needed to take care of herself.

  • Mary Kate Olsen

    Actress and former child star Mary Kate Olsen famously went to rehab in 2003 for anorexia, but rarely spoke about it. In 2008 she confessed that the disease nearly killed her. "There have definitely been times in my life when I just turned to people and said, 'I'm done - this is too much for me. This is too over-whelming," she said.