"Hey besties, has anyone ever had a dimple on their breast that didn't end up being breast cancer because I'm kinda freaking out right now," she asked her 304,000 followers.
"If any doctors could reply to me or anyone that's had a dimple on their breast like a normal cheek dimple that would be great."
Abbie found the indentation, which she said is similar to a cheek dimple, next to her nipple.
"I am literally having a panic attack and I wouldn't normally post this but I'm honestly about to lose it and I've booked an appointment tomorrow so no one tell me go to a doctor," she said.
Abbie said it was hard to get an appointment due to Sydney's current COVID lockdown, adding that she is "really scared".
"Right now all I'm doing is Googling and all that's coming up is severe breast cancer and I'm not coping," she said.
"If anyone could DM me if you've had a dimple be anything but cancer, that would be great."
A few hours later, Abbie revealed she spoke with a doctor on the phone who provided potential causes for the dimple.
"The doctor said it could be one of many things including trauma/scarring. Going to my GP tomorrow, feeling better," she wrote.
The 26-year-old said her scare was a stark reminder for women to be vigilant with checking their breasts for changes.
Abbie rose to fame on Matt Agnew's season of The Bachelor in 2019, and has since gone on to become a popular and outspoken Instagram star.
She has been vocal about her support of vaccines during the pandemic, and hasn't shied away from calling out fellow influencers who have preached their anti-vax views.
“You don’t have any right to say you’re scared of the vaccine if you take ketamine and MDMA on the weekends made by bikies in their garages," she said in July.
Abbie said she has been flooded with anti-vaxxers who said it's up to them to choose whether or not to get vaccinated with either Pfizer or AstraZeneca.
“They’re saying that’s a choice. That’s precisely my point. You’re choosing to do a horse tranquiliser for fun or take MDMA but you won’t choose to take a vaccine for the greater good," she said.