The pregnant Liberty X singer described a fellow site user as a "f**kin arse" after they mistook her baby bump for weight gain, prompting the individual to warn that he would kick her in the stomach and push her down the stairs.
"'I'm going to report that tweet," she hit back. "That's is horrendous to tweet to a pregnant woman."
Heaton then re-tweeted the message on her own profile, branding the author as a "total sicko" and "disturbed".
As her followers rushed to offer their support, the Celebrity Big Brother star replied: "Thank u guys. We are on the case of reporting abuse. He is continuing his rant- obviously hasn't learnt."
Ex-Emmerdale star Sheree Murphy also weighed in on the issue of Twitter abuse, asking Heaton: "What's up with the weirdos today?? I got called a fat useless bitch this morning!"
"Seriously??" the 31-year-old replied. "[Twitter is] full of idiots who havnt got a life of their own."
Heaton revealed yesterday that she had discovered the gender of her baby, her first child with husband Hugh Hanley.