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The condition, which affects one in 200 people, is a combination of a serious mood disorder - in Anne's case bipolar - and schizophrenia.
Tulisa has revealed that she became depressed and started drinking as a teenager because her life 'felt like a living hell.'
Tulisa has admitted: 'One of the worst things about dealing with my mum was how helpless and alone I felt at such a vulnerable age.'
'The doctors didn't seem to be able to stabilise my mother's moods and I felt myself being dragged further and further down by the environment I was forced to live in.'
'Music and my dream of becoming a success was all that kept me going through those very dark times,' said Tulisa.