Susan has been facing unwanted comments about her small body.
In a post on Instagram, Susan said the hate started way back when she was a small girl, something that pushed her to become a model.
"I became a beauty queen, represented my country for the crown and walked the runway to prove that it’s okay to have a body like mine," she said.
The Posh Palace CEO said she won several times, although she was hurting deep inside.
The mother of two said bodyshaming is never okay, even if it's a public figure.
"It’s okay to have the longest legs and a lean body, a long graceful neck, and big African lips," she said.
Susan said the judgement and unnecessary remarks harm people, especially younger and impressionable Kenyans.
"Pain has grown me so much and through the journey, I have become a bold woman," she said.
"I’m back on the runway this year, strutting the biggest fashion shows in the world. I'm really confident, bold and sassy, and as I turn 40 later this year, I’ve come full circle. It’s incredible, I’ve never felt more stunning than this."
She said it has always been a long, painful journey to body positivity.
She said that won't stop her from living her best life and even taking some time to teach trolls a lesson or two when they're in the right mood for it.
"To all the little girls, to my daughters, your body is perfect, my loves. Tall or short, skinny or chubby. You can exercise because it’s okay to tone even when you’re skinny, and no, you don’t need to eat more.
"You are your kind of beautiful. Don’t let anyone tell you otherwise. There’s only one you, always and forever."
She called on women to stand with each other rather than spread hate.
"We need to stop being tone-deaf. It's not right, it’s wrong and it’s toxic. It’s damaging, we need to stop body shaming as women. Thick, thin, you’re gorgeous all the same."
A few weeks ago, Susan also addressed claims that she had 'bought' her body.
She said all women in the show are authentic, adding that the show represents independent women in Kenya.
