Hmm...

Gigi Hadid has lost a shocking amount of weight since bursting onto the modeling scene, but the supermodel just shut down her haters by explaining the health reason for her drastic slim down.

"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," she tweeted.

"Although stress & excessive travel can also affect the body, I have always eaten the same, my body just handles it differently now that my health is better. I may be “too skinny” for u, honestly this skinny isn’t what I want to be, but I feel healthier internally and am still learning and growing with my body everyday, as everyone is," she continued.

"I will not further explain the way my body looks, just as anyone, with a body type that doesnt suit ur “beauty” expectation, shouldnt have to. Not to judge others, but drugs are not my thing, stop putting me in that box just because u dont understand the way my body has matured. 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," she concluded.

Seems a little defensive, just sayin'!