Sinister moment I realised my ‘cancer-stricken’ pal was Instagram’s worst con artist who preyed on dying victims [Video]

WATCHING her best friend Belle Gibson roll around on the floor having a seizure, Chanelle McAuliffe frantically shouted for someone to call an ambulance.

But before anyone had the chance to dial the emergency services, Belle miraculously recovered, wiping the saliva from her mouth and insisting she was fine.

It was the moment Chanelle, 36, from Melbourne, realised that Belle, 32, was conning millions of people into believing she had terminal cancer — and was making hundreds of thousands of pounds in the process.

In fact, Belle, a fit and healthy mum-of-one, had deviously created Australia’s most successful wellness account, claiming she’d developed a natural healing lifestyle plan that cured her of deadly brain cancer.

The influencer honed in on …