Is Lady Gaga obsessed with her weight? In a recent interview with Star Magazine, investigative journalist Ian Halperin is making bold allegations about the pop star. Ian says that her friends don’t even know who she is anymore because she has completely transformed into Lady Gaga. He said, “Those who have worked with her on tour reported to me that Gaga barely ate for weeks at a time to fit into her costume. She is sick and obsessed with her weight. One friend told me, Gaga will stare at herself in the mirror for hours on end, analyzing and critiquing her body. It’s an unhealthy obsession.”He goes on to explain the reason behind Gaga’s wacky costumes. He said, “Her lupus is far worse than she lets on. Part of the reason she wears wigs and makeup is because her hair is falling out and she’s covered in red blotches, both side effects of the disease.” Lady Gaga admitted to having lupus. Halperin also accuses Gaga of using drugs. He says she has done every drug from heroin to cocaine.