She had a title before becoming Princess Diana. After Diana's father, John Spencer, Viscount Althorp and the 8th Lord Spencer, inherited the title of Lord Spencer in 1975, she became known as Lady Diana Spencer. It was this title that earned Diana the nickname "Lady Di."
She suffered from postpartum depression. In a 1995 interview with Martin Bashir, Diana revealed that she struggled after William was born in 1982 but that the royal family simply turned the other way. "I felt like I was the first person ever in the royal family to openly cry and nobody knew what to do," she said. "If you haven't seen it before, how do you support it?"
She had a history of self-harm. Diana admitted that during her marriage, she self-harmed by "hurting her arms and legs," because she couldn't cope with the pressures around her and was crying out for help. She also revealed her struggle with bulimia, saying the number of times she would throw up in a day depended on the pressures she was feeling. "It was a symptom of what was going on in my marriage," she said.
She never saw herself becoming queen. "I'd like to be a queen of people's hearts, but I don't see myself being queen of this country," she told Martin Bashir. "I don't think many people would want me to be queen, and when I say many people, I mean the establishment that I'm married into. They've decided that I'm a nonstarter, because I do things different, because I don't go by a rule book, because I lead from the heart and not the head. And albeit that's gotten me into trouble in my work, but someone's gotta go out there and love people."