The former Tracy Beaker actress stated her belief that comments on her "womanly hourglass shape" come down to "jealousy".
"I've got big boobs, a big bum and a little waist, but so what?" she told Closer.
"I'm a womanly hourglass shape, I love having curves - particularly my Kim Kardashian bum! My bum is shrinking a bit though, which I'm quite upset about.
"[The abuse] makes me so angry. I try to put it down to jealousy, but some of the nastier comments have made me doubt myself.
"I started to think, 'What are they seeing that I'm not?' It got to the point where I thought about taking a photo of my top with the [size 6] label showing. You feel you have to prove yourself."
"I wanted people to get to know me as Dani, rather than Tracy Beaker," she said.
"It's been a great opportunity to spread my wings and show I'm no longer a kid."
The full interview appears in this week's Closer, on sale now.