Now, keeps herself grounded by meditating and spending time with friends.
The Burberry and Chanel model was only 14 years old when she stumbled on the truth of her biological father.
Till then she'd always believed that her mother's husband, fertility specialist Bronner Handwerger, also shared her DNA.
It was only when she discovered that neither he nor her mum shared her blood type did the singer-songwriter, Pearl Lowe, admit that she was the happy consequence of a past tryst with the Bush frontman.
Gavin Rossdale is now married to singer and fashionista Gwen Stefani.
Gavin Rossdale with wife Gwen Stefani and their two kids
''[It was] a very interesting time.'' said Daisy about the world up-ending revelation. ''That age is when you're at your most malleable; you're developing frontal lobes.
"But I'm very proud of those times 'cos at those moments when the st hits the fan I could either go out and get really f*ed up or I could go home, cry myself to sleep and wake up in the morning and give my mum a big cuddle, and feel better. And face it head-on.''
Daisy with her mum, Pearl
When talking to the London Evening Standard, she confessed that she and her friends "all love to go out, have a good dance and play. But none of them is destructive.
"Some have been or could've been but not now. It seems like there's been a generational shift; that people are learning to look after their bodies earlier, (sic)''