(More of the interview at the source, it's really long)
WALLACE: Does anything keep you up? Do you have anxiety?
JENNER: I wake up every morning with the worst anxiety. I don't know why.
JENNER: I have, like, a problem. [laughs] I wake up every morning at, like, seven or eight because I think that there's a bad story about me, and I have to check. My worst fear is waking up and finding something bad about me on the internet.
WALLACE: Well, I want to hear your story. You were bullied?
JENNER: Yeah, pretty much ever since I was 9, since the show started, there's been so much bullying towards me. Like, every single day I see something negative about me. And it's just completely torn me apart. I feel like I've lost so many amazing traits because I've listened to stupid people, ignorant people who are bullies.
source