Model Who Left Kylie Jenners Birthday on Stretcher Says Shes Super Embarrassed

Tammy Hembrow, an Australian Instagram Model and influencer, posted a YouTube video detailing the incident, which she blamed on lack of sleep. (On Friday, Hembrow was photographed leaving the party facedown on a stretcher before being loaded into an ambulance by paramedics. A source told PEOPLE it happened before the birthday girl arrived. )