Model Tammy Hembrow 'Super, Super Embarrassed' After Leaving Kylie Jenner's 21st Birthday In a Stretcher
Inside Kylie Jenner's 21st Birthday Bash

"I pretty much collapsed, honestly," Australian influencer Tammy Hembrow explains.

Tammy Hembrow left Kylie Jenner's 21st birthday party in an ambulance last week and now, she's opening up about what led to her hospitalization.

Hembrow, a model and social media star who once posed for Khloe Kardashian's Good American line, took to her popular YouTube channel on Monday to give an "update" to all her fans.

"Firstly, I just want everyone to know that I'm okay. I've had a lot of concerned followers messaging me and asking if I'm alright. I just want to clear that up and say yes, I'm okay," she said at the top of the video.

"Basically, what happened is, I was in L.A. and running on pretty much 30 hours no sleep. I was struggling to stay awake as I was getting my hair and makeup done," she continued. "I was literally sitting there falling asleep, like I could barely keep my eyes open. I've been throwing myself into work way more than ever. I have my kids the majority of the time, literally been a non-stop, on the go kinda thing."

The mother-of-two then brought up her recent split from former fiancé Reece Hawkin.

"I think because of the breakup, I've been trying to keep myself busy and not really taking time to think about how I'm actually feeling or focusing on myself kind of thing," she went on. "I probably definitely shouldn't have been drinking, because of how jet lagged I was, how exhausted I was and I already wasn't feeling well at all."

"I pretty much collapsed honestly. I'm super, super embarrassed about it," she said. "I read a quote yesterday that said make time for rest or your body will force you to slow down in ways you probably won't like and I feel like that couldn't be more true."

While she initially wanted to just forget it all happened, she said she decided to make this video to be honest with all her fans.

"Another thing I want to bring up is people trolling, being nasty, making up things just for no good reason. I personally could never imagine attacking someone or judging someone for something like this," she added. "You never know what someone is going through, so it's just a reminder to be kind always."

"There's a lot of people that go through a lot worse things than this at the end of the day. I'm not going to let something like this define me, I'm not going to let it bring me down, I'm just gonna use it to grow and become a stronger person," she said in closing. "These things happen, it's not the first time something like this has happened to someone."

She then thanked her fans again, this time breaking into tears as she added, "I don't want to let you down."

View Photos Instagram Inside Kylie Jenner's 21st Birthday Bash