The `America`s Got Talent` host was hospitalised for kidney failure in January, then again a few weeks later with blood clots in his lungs, and has since been diagnosed with rare disease lupus nephritis, and has documented his struggle in short film, `The Incredible Health Hussle`.
He told CNN talk show host Piers Morgan: "The whole process I`ve been documenting. Since probably my first time out of the hospital in January, I`ve just been having the cameras on. It`s real intimate and raw."
Nick - who has 11-month-old twins Monroe and Moroccan with his wife Mariah Carey - made the documentary as a way to highlight health issues and help others who are suffering.
He added: "I want to kind of show the other people that are dealing with these illnesses that they`re not alone.
"There`s so many questions. How did you get this? How are you working through it?
"You`re going to see all of this in `The Incredible Health Hussle`."
Nick also praised Mariah for taking care of him and their children throughout his ordeal.
He said: "She is such a pro, she knows all the home remedies."
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