Cara Delevingne's disheveled look made his friends and fans concerned about her health.

After partying for days at Burning Man, reports revealed that Delevingne's health seemingly deteriorated her friends thought that it had affected her mental health already.

The Burning Man started on August 28 and is expected to last until September 5. One source reportedly spotted the actress and said she now has a worrying appearance.

"Her friends are worried about her generally after some erratic behavior, but she has a good group around her. Her sister Poppy was at the festival with her. She wasn't alone and she has her back," the insider told Mail Online.

Radar Online that her bizarre behavior was also seen when she changed her clothes while parked in a public area in Los Angeles on Wednesday.

Delevingne and his representatives have not responded to the issue yet. But it caused fans to dig her mental health issues in the past years.

Cara Delevinge's Mental Health Issues Explored

Delevingne has been opening up about her mental health issues with different news outlets.

In her interview with The Edit, the supermodel revealed that she suffered depression after being teased and bullied when she was younger. She noted that she was a late developer and that she did not develop her chest when she was a teenager.

After hearing them call her names like frigid and flat-chested, she felt alienated and questioned herself as to why people could not love her.

Unfortunately, it led her to experience suicidal thoughts, as well.

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She also told PEOPLE and Harper's Bazaar that she was diagnosed with manic depression and bipolar illness. Things got worse when she struggled with her sexuality. But in 2017, she finally came out as pansexual, allowing the community to stand with her amid her struggles.

According to the Harvard Medical School's Harvard Health Publishing, bipolar disorder - also known as manic depressive illness or manic depression, can cause wide mood swings in patients. They can be very active and inactive during the episodes.

Delevingne will try to raise awareness and promote love through her documentary series, "Planet Sex," after telling The Sunday Times that she realized people have different paths. BBC originally helmed the six-part docuseries.

Fans can watch it on Hulu in the US, but the final release date is yet to be determined.

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