Former Coronation Street actress Helen Flanagan has revealed the devastating mental health breakdown that saw her world completely "collapse." "I'd got it into my head that one of my neighbours was trying to kill me," she writes in her new book Head & Heart. "I'd concocted this ludicrous story that he was a drug smuggler, working with my ex-fiancé, the former Manchester City, Chelsea and Aston Villa footballer Scott Sinclair." Helen reveals how her mind transformed into a "battlefield" of