Star Magazine reports that Brad Pitt fears that ninety pound Angelina Jolie is suffering from the liver disease Hepatitis.

According to the Star source, Brad “convinced Angelina to go see a doctor because he was afraid something was very wrong with her. She doesn’t have much of an appetite and is eating very little.”

“Tests were run and Brad’s family were led to believe that her illness might be something like hepatitis, but since then he’s clammed up, I think he knows what’s wrong, but he’s keeping it from people.”

“Angelina’s moods are up and down and often volatile,” says the friend. “She’s lashed out at Brad telling him, ‘The only reason I’m with you is you’re a mother to the children!’

“Brad has a much more nurturing, maternal side to him than Angelina.”