Mystery surrounds the sudden death of Queensland bodybuilder.

On Saturday morning, Andy Page posted a video to Instagram showing her 7500 followers how to whip up a nutritious banana smoothie.

It would be the last breakfast she ever had.

That night, the Gold Coast-based bodybuilder and fitness model went to bed with a pain in her side and never woke up.

The circumstances surrounding Page’s death remain a mystery, however a post mortem is being conducted in the hope of determining precisely what killed the 32-year-old.

Page’s former boxing trainer, Jamie Myer, flatly dismissed any speculation that she was using drugs in the lead up to her death.

“She just wasn’t that kind of girl,” he told The Courier Mail.

Instead, Myer described Page as “a happy, bubbly girl, who always lit up a room and gave 100 per cent to everything she did.”

“She had no comps coming up and was a hard-worker who trained the right way,” he said.

When you’re strong act weak, when you’re weak act strong. When you feel like shit whack on your superman outfit, coffee up, & act like a hero. #hero #superman #coffee #caffeine #clarkkent #glasses #work #hustle #grind #nutrition #npcoaching #tfl #tagsforlikes #pagesoffitness #posewiththepros #isitfridayyet #coffeeaddict

A photo posted by Andy Page (@andypage_ifbbpro) on May 23, 2016 at 2:34pm PDT

Page began bodybuilding in earnest in 2012. She quickly excelled, and before long was an International Federation of Body Building and Fitness pro, competing for figure titles in competitions all over the world.

An exercise physiologist, nutritionist and former AIS swimmer, she had recently moved back to the Gold Coast after selling Fitness Republic, the Sydney gym she owned with her husband/coach Nathan Page.

She had reportedly just began training again, following recovery from an unidentified injury.

According to The Gold Coast Bulletin, Page’s family have requested privacy while they grieve her “sudden and tragic” passing.

Police are not treating her death as suspicious.