Allie Barone is only six years old, but for the last couple years she'd been suffering from severe, adult-sized headaches.

Her parents took her to a specialist, where an MRI revealed that their daughter had a Type I Chiari malformation -- a disorder caused when a patient's skull is too small or too oddly shaped for the brain its meant to protect.

"Her brain stem was compressed and squished through the opening of the base of her skull, where the skull meets the spinal cord; it's supposed to be wide open," Stephanie Barone, Allie's mom, told Fox News. "When the spinal fluid couldn't get into her brain, that's why she had the headaches."

And while the condition can typically be treated with a simple surgery, Allie's ordeal was far from over.

The family traveled to the Children's National Medical Center in Washington, D.C. for an operation that took 3-4 hours and, while there were a few hiccups, it proceeded mostly as planned.

After her initial operation, reports the New York Daily News, her parents were alarmed to find Allie's spinal fluid had begun leaking out of her incision. So she went back into surgery.

This cycle of surgery -- discover leaking spinal fluid and head back to surgery -- happened a total of three times, reports Fox News, before doctors discovered an oddly shaped vertebrae had been weakening the spinal cord's protective membrane, allowing fluid to leak out.

To her parent's relief, Allie's fourth bout of surgery proved successful. A Facebook page dedicated to Allie's drawings reports that the girl's energy has soared, that she's just started school, and that she's "having a blast."

Check out this slideshow of miracle babies below:

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  • Adam Cheshire, Born With Meningitis

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  • Kenna Moore, Born Smaller Than A Soda Can

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  • Nicholas And Alexander Bolden, Born After Mom Stays On Respirator For A Month

    Mom, Christine Bolden was brain dead from aneurysms, but doctors kept her on a respirator for a month so that her twins could develop. They were born prematurely at 25 weeks. <a href="" target="_hplink"><em>Christine didn't survive, but relatives said they'll "have something of hers."</em></a>

  • Ayden Vargas, Born To Kidney Transplant Recipient

    Nilda Vargas learned that her kidneys were failing and was put on dialysis in 2008. Her disease meant she had a very small chance of becoming a mom. <a href="" target="_hplink"><em>Family member donated kidney and Nilda gave birth in 2012.</em></a>

  • Harris Telfer, Born To Cancer Survivor

    Madeleine Telfer beat cancer twice, but doctors told her she was infertile because of her treatment. <a href="" target="_hplink"><em>She found out she was pregnant two later. </em></a>

  • Jamie Ogg, Pronounced Dead At Birth

    Kate Ogg their delivered her son prematurely at 27 weeks. He was pronounced dead and his parents kissed him goodbye <a href="" target="_hplink"><em>Five minutes later, something miraculous happened. </em></a>