Tallulah Willis entered rehab shortly after tweeting a cryptic message on July 23, People magazine reported.

While the tweet has since been deleted from the 20-year-old daughter of Bruce Willis and Demi Moore’s page, several sources indicated to the publication that she’s seeking help.

“The situation had been building for a while,” a family insider said.

“She’s been dealing with some unhappiness, and everything sort of came to a head,” the insider added.

“I struggled a lot when I was younger,” Tallulah Willis previously said in a video posted on her fashion blog, adding that she was “diagnosed with body dysmorphia”.

During her battle with the mental illness, Tallulah Willis whittled down to 95 pounds.

During her battle with body dysmorphia, Tallulah Willis whittled down to 95 pounds (photo Getty Images)

“[I was] reading those stupid f—ing tabloids when I was, like, 13, feeling like I was just ugly, always,” she continued on her blog.

“I believed the strangers more than the people that loved me, because why would the people who loved me be honest?”

While her famous parents are reportedly standing by her side, sister Rumer Willis celebrated her 26th birthday with a bang.

“Best birthday cake ever,” Bruce Willis and Demi Moore’s oldest daughter wrote on Instagram on August 16 with a photo of a gun-shaped birthday cake, which her post indicated was received from her mother.

“Thank you mama for making this day so special.”

Rumer Willis also posted a funny black-and-white photo that appeared to be taken in a photo booth.

Only six years older than Tallulah and three years older than their other sister Scout, 23, Rumer Willis seems to be on the path of self-discovery and self-love despite the trials and tribulations she’s endured throughout her young life.

[youtube VLwWimoG_IA 650]