On Sunday, day four of New York Fashion Week, IMG model GiGi Hadid blasted cyber bullies for criticising her body for being “too skinny.” But several years ago, the fashion industry thought Hadid was “too big” to model high fashion.

Over the weekend, after the 22-year-old walked in Jeremy Scott’s fall/winter 2018 show, she noticed social media commenters were speculating on why she’s thinner now compared to a few years ago, People reports.

Jeremy Scott NYFW 2018. Gigi Hadid/Instagram
Victoria Secret 2015. Gigi Hadid/Instagram

In a series of tweets, Hadid fired back at rumors that claimed her weight loss was due to drug use. She refuted the accusations in an eye-opening statement about her changing physique.

The model tweeted:

For those of you so determined to come up w why my body has changed over the years, you may not know that when I started @ 17 I was not yet diagnosed w/Hashimoto’s disease; those of u who called me ‘too big for the industry’ were seeing inflammation & water retention due to that.

Over the last few years I’ve been properly medicated to help symptoms including those, as well as extreme fatigue, metabolism issues, body’s ability to retain heat, etc … I was also part of a holistic medical trial that helped my thyroid levels balance out.

Hadid made it clear to her online critics that she is healthy. She wrote:

This skinny isn't what I want to be.

She explained that she would like to put on more weight but due to her illness, her appearance has changed.

According to the American Thyroid Association, Hashimoto's Thyroiditis is a disease that attacks the immune system. Symptoms include fatigue, muscle aches, and weight instability, due to a change in metabolism.

Hadid explained her thyroid imbalance caused her weight fluctuation:

Sufferers of the incurable disease connected with the model's struggle and immediately came to her defense:

According to a December 2016 People article, Hadid opened up about her battle with thyroid disease at Reebok’s #PerfectNever event in New York City. She said the illness can either suppress or increase her metabolism. She also begged the internet to stop shaming her for something she can't control:

Please, as social media users & human beings in general, learn to have more empathy for others and know that you never really know the whole story. Use your energy to lift those that you admire rather than be cruel to those u don’t.

Hadid ended her frenzy of tweets with a request for critics to respect her private health journey and stop judging her body.

Fans thanked Hadid for her openness and willingness to bring awareness to Hashimoto's, but believed in the future she shouldn’t have to explain her health for “mean people”:

Other followers “clapped back” at Hadid's tweets. Some found it ironic the supermodel that created an unrealistic beauty standard felt pressured by “beauty expectations”:

Nevertheless, Hadid has a strong message for women: no matter who you are, body-shaming hurts.