Could Whitney Houston have died from natural causes? That's the theory being floated by the National Enquirer, which quotes a source who says she'd suffered from heart problems for years.
The insider tells the Enquirer that Whitney, who was born a premature baby, had never been totally healthy. The snitch says, "She didn’t talk about it a lot, but she knew that she had heart problems and her life was probably going to be cut short. Needless to say, she abused drugs. But whether or not she used drugs, she believed she’d never see her 50th birthday. Whitney knew she could drop dead at any time."