Fragile Bella Hadid has rushed back to work despite her energy-sapping illness, and RadarOnline.com can reveal her desperate loved ones, led by big sister Gigi Hadid , are set to stage an intervention to force her to slow down before she collapses in a crumpled heap.

The 29-year-old, Lyme disease -battling supermodel closed out a star-studded Victoria's Secret parade in the Big Apple, strutting her stuff alongside a who's who of leggy catwalkers. Article continues below advertisement

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But her wobbling appearance triggered major concern among loved ones and fans, who noted she was clearly buckling from the strain

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