Gigi Hadid claps back at cyberbullies with a series of tweets that revealed her autoimmune condition and asking for fans to be more empathetic online.

The 22-year-old model is taking New York Fashion Week by storm, but even the biggest runway stars are not immune to online haters. A number of people on Twitter noticed and criticized Hadid's fluctuating weight, prompting her to fire back at the social media users who are blasting her skinnier frame.

Gigi Blasts Haters On Twitter

Hadid starts her tirade on Twitter by reminding her followers that she has been suffering from Hashimoto's disease for years. When she started to model at 17, she hasn't been diagnosed or treated yet, and this caused her to retain more water and gain weight.

Eventually, the model underwent medication and a holistic medical trial that helped balance her thyroid levels and calm down the many symptoms of her disease. She adds that the medication helped her body become healthier, although it may be "too skinny" for critics and even for herself.

After explaining the changes her body went through, Hadid points out that she shouldn't have to defend her body, especially to people expecting a certain standard for beauty or sex appeal and simply do not understand the changes her body have developed with her medication.

Health Woes

It was back in late 2016 that Hadid first divulged her struggles with the Hashimoto's disease. At the time, she was in the middle of getting ready and then walking the Victoria's Secret Fashion Show.

"My metabolism actually changed like crazy this year," Hadid says in an interview with People in 2016, adding that Hashimoto's disease affects her thyroid. "It's now been two years since taking the medication for it, so for the [Victoria's Secret] show I didn't want to lose any more weight."

She continues that toned muscles and maybe a perkier behind are her goals for the biggest fashion show of the year.

Other celebrities who are diagnosed with this autoimmune disease include Zoe Saldana, Gina Rodriguez, Victoria Justice, and Nia Vardalos.