The reality star, 24, said she was avoiding reading what people had to say about her since becoming a mum.
Speaking at The Baby Show Live @ Home, Dani admitted: "I try never to look at comment sections because I know as soon as I click that button, I'm going to get hurt."
She went on: "I'd just had Santi and I remember seeing some men had commented saying 'Oh god, she's huge!'
"I've just had a baby for god sake leave me alone."
It's not only comments on her weight that Dani has had to deal with recently, as she has also been subject to mum-shamers since giving birth.
"You do get messages from women who aren't helpful and supportive. And they say things and you're like 'I really don't need to hear that,'" she recalled.
Dani reflected about a time she put her son, Santi in his car seat whilst wearing a coat, only to be told she was about to "suffocate" her son.
"I had messages from women like 'You're gonna make him suffocate. He's gonna overheat in the car. If you have a car crash he's not gonna be safe or protected.'
"I was like, "Oh my god, why are you even saying that to me,'" she said.
Dani - who is daughter of EastEnders actor Danny Dyer - said that even though her dad was in the public eye, she had never normalised the trolling and scrutiny that came with fame.
"I hope that comment sections like that will be taken away to prevent that," she said, adding that she'd had her own "highs and lows in the media."
"People think I'm used to it because my dad was in the public eye, but I'm not because it was never me. The comments were never directed to me."
Dani welcomed Santiago - who she shares with boyfriend Sammy Kimmence - back in January.
The Love Island star first announced the news she was expecting in July with a cute snap of her and Sammy alongside an ultrasound print-out.
Dani rekindled her romance with Sammy after splitting with Jack Fincham, who she met on Love Island series 4.
The former couple won the 2018 series and went on to star in their own reality show before going separate ways.
Jack himself became a parent just months prior, announcing the arrival of his little one last year.