Struggling supermodel Bella Hadid is finding out who her friends are as she continues her 13-year battle with Lyme disease, RadarOnline.com can reveal.

The cover girl, 29, who was recently hospitalized after a flare-up of the chronic condition, was diagnosed with the tick-borne disease in 2012. Later that year, her mother, Yolanda Hadid , and brother, Anwar, were also diagnosed with Lyme, which they may have contracted while living on a ranch in Santa Barbara. Article continues below advertisement

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"Chronic Lyme disease, like Bella has, is especially tough because the symptoms aren't visible to the eye," shared an insid

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