Lady Gaga Reveals She Suffers from PTSD: "I've Never Told Anyone That Before"

Lady Gaga VS Fashion Show - Getty - H 2016
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"Today I shared one my deepest secrets w/ the world," the pop star tweeted.

Lady Gaga shared one of her "deepest secrets" on Monday's Today show.

"I have a mental illness and I struggle with that mental illness every day," she told teens at New York City's Ali Forney Center, a shelter for homeless LGBT youth, during a segment for the NBC morning show. "My own trauma in my own life has helped me to understand the trauma of others."

The Joanne singer visited the shelter as part of the #ShareKindness campaign, Today and NBC Universal’s celebration of kind acts both big and small.

Today also interviewed the singer one-on-one, which is when she opened up about her mental illness.

"I suffer from PTSD," she said. "I've never told anyone that before, so here we are."

She continued, "The kindness that's been shown to me, by doctors as well as my family and my friends, it's really saved my life ... I've been searching for ways to heal myself, and I've found that kindness is the best way."

Gaga, who revealed she was raped at age 19 in 2014, is an outspoken advocate for victims of sexual violence, both through her Born This Way Foundation and her Oscar-nominated song "Til It Happens To You," which was featured in The Hunting Ground, a documentary on campus rape.

The singer shared the Today clip on her Twitter Monday morning.

"Today I shared one my deepest secrets w/ the world. Secrets keep you sick w/ shame," she wrote, along with a link to the video. Watch below.

On Tuesday, Gaga took to Twitter to say that sexual assault is one of the traumas that has led to her complex PTSD.

"It wasn't just sexual assault that led to my complex PTSD. I have prolonged repetitive traumas over the course of my career. #ShareKindness," she wrote.

Dec. 6, 2 p.m. ET: Updated with Gaga's Tuesday tweet.