Medical Mystery: Boy Who Cries Blood

It's a medical condition shared by a creepy villain in the James Bond movie "Casino Royale," but for 15-year-old Calvino Inman, crying blood is a real-life, everyday hardship.

The Tennessee boy cries blood uncontrollably, sometimes three times a day, and doctors cannot tell him why.

"Sometimes, I can feel it coming up, like a tear. I feel my eyes watering," Inman told ABC News affiliate WATE. "Sometimes, it will burn as it comes out."

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The tears, he said, can last up to an hour. In pictures, Inman is shown with the red teardrops rolling down his face, leaving a bloody trail up to eyes brimming with more blood.

Inman, of Rockwood, Tenn., said even his friends have called him "possessed."

When it first occurred, Inman's mother called 911.

"The scariest thing in my life is when he looked at me and said, 'Mom, am I going to die?' That right there broke my heart," his mother, Tammy Mynatt, told WATE.

Mynatt has taken her son for an MRI, a CAT scan, ultrasounds and to specialists. But no one has been able to diagnose this medical mystery.