Gossip Girl -star Michelle Trachtenberg was concerned about her fans after sharing 10 Instagram posts in the past three weeks prior to her death at the age of 39.
Prior to her shock, the star was extremely active on social media.
Her last Instagram post, uploaded seven days ago, was a throwback photo of Haar when attending the Killing Kennedy Premiere in the Saban Theater on November 4, 2013 in Beverly Hills.
“I wanted to look like Naughty #tinkerbeli wanted to look like Naughty #tinkerbell,” she wrote the photo, who showed her pose on the red carpet.
Days before she shared an older photo and jokes about not leaving the 'Sunday Scaries'.
She was clearly in a nostalgic mood, because she recently also shared a Snap, taken in 2011 at the School of American Ballet Winter Ball, and a brutal suggestion for those without Valentine's Day is planning to see, meet, meet, get married, get married, get married murder.
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Gossip Girl -star Michelle Trachtenberg was concerned about her fans after sharing 10 Instagram posts in the past three weeks prior to her death at the age of 39; Seen in 2013
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Moreover, she shared a sweet tribute to her friend, talent agent Jay Cohen, whom she described as 'the man who is still long enough for' her to 'paint his face'.
The post contained a sweet snap of them from Halloween dressed as Dr. Jekyll and his alter ego, Mr. Edward Hyde.
Although the comments sections on her message have since been flooded with condolences and 'Rest in Vredes' messages, many expressed worries about her health prior to her death.
On February 8 and February 12, Trachtenberg shared more recent selfies at the same location, which seemed to be taken on an outdoor terrace.
Trachtenberg was found dead on Wednesday in her apartment in New York City near Columbus Circle just after 8 hours of local time by her mother, police sources told ABC News.
It was also reported that the actress recently undergone a liver transplant and 'possibly experienced complications'.
It is believed that she has died of natural causes and the police do not treat death as a suspect, sources that have been added to the New York Post.
Trachtenberg was quite known for her work as Buffy's (Sarah Michelle Gellar) younger sister Dawn Summers in 66 episodes by Buffy the Vampire Slayer from 2000-2003.

Prior to her shock, the star was extremely active on social media

She was clearly in a nostalgic mood, because she recently also shared a SNAP, taken in 2011 at the School of American Ballet Winter Ball (above)

Because she wanted her followers an 'essential' weekend, she recalled the feeling as Cinderella during the event

Moreover, she shared a sweet tribute to her boyfriend, talent agent Jay Cohen, whom she described as 'the man who sits long enough for' her to 'paint his face'
She also had a recurring role as 'The Witch of the Upper East Side' Georgina Sparks in Gossip Girl in 2008-2012.
In recent years, Trachtenberg had been worried about her health after sharing disturbing posts on social media in which she seemed weak.
In 2023, Michelle repeated her role as the wedding spoiling, manipulative socialite in two episodes of the second (and last) season of HBO Max's Rossdelmeise.
The last major performance of Trachtenberg was Executive Producing and Organizing the 13-episodes True-Crime-Docuseries Meet, Marry, Murder for Tubi TV in 2021.
In 2018 she had voice -over -performances on the animated spoof robot chicken from her buddy Seth Green on adult swimming and the Facebook Watch Animated Series Human Kind van.
Last year the star hit back at 'Haters', which expressed concern about her health and appearance.

Trachtenberg was found dead on Wednesday in her apartment in New York City near Columbus Circle just after 8 hours of local time by her mother, police sources told ABC News; Seen in 2023
The former children's star – which has 1.1 million Instagram/Twitter followers – wrote 'Fun Fact. This is my face. No malnutrition no problems. Why do you have [to] hate? Get a calendar. '
The drama started when Michelle shared a Snap of herself to get her hair done in Tracey Cunningham's Mèche Salon in Beverly Hills.
A fan asked: 'Michelle [you] Looks sick. [Are you] OK?'
Trachtenberg replied: '@cathy_critz explain to me how I look sick. Have you lost an agenda and do you not realize that I am not 14? I am 38. How sad for you to leave such a comment. '
The next day she posted another selfie with the challenging caption: 'I recently received various comments about my appearance. I have never undergone plastic surgery. I am happy and healthy. Check yourself haters. '

It was also reported that the actress recently underwent a liver transplant and 'possibly experienced complications'
Michelle uploaded two more selfies she took and again, fans clarified that they are not worried about plastic surgery or malnutrition, but rather her 'thinning hair and yellow eyes'.
Buffy star Michelle Trachtenberg, 38, refers to 'Haters' about cruel comments about her 'thinning hair' and 'yellow eyes'
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“Nobody is talking about plastic surgery. They are talking about closing your liver, “wrote a follower.
Another typed: 'I really don't think anyone implied that you had plastic surgery. We are generally worried about you. Your eyes are yellow, your hair is [thinning] Usually you look sick. '

Her breakout rol came as Georgina Sparks on gossip girl
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Trachtenberg depicted with her former gossip girl Costar Blake Lively
“People just worry that your eyes are yellow and all your hair falls out,” another written.
“I think they are worried about your health.”
A follower wrote: “Everyone with yellow eyeballs is not good and must see a doctor.”
Trachtenberg started her acting career three years old in Nickelodeon television series The Adventures of Pete & Pete (1994-1996).
In 1997 at the age of 11 she won a Young Artist Awards for her performance as Maggie in CBS 'Meego.
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Trachtenberg appeared in 66 episodes of Buffy The Vampire Slayer; Seen in 2003
De Ster also appeared in 2004 on Eurotrip and 66 episodes of Buffy the Vampire Slayer, between 2000 and 2003, for which she won another Young Artist Award and three Saturn Award nominations.
Her breakout rol came as Georgina Sparks on Gossip Girl.
Trachtenberg was nominated for an Emmy Award during the day for her role as hosts the Discovery Kids Series Truth or Scare (2001–2003).
Her other screen credits are Mysterious Skin (2004) and Black Christmas (2006).
She also played in the NBC television series Mercy (2009–2010) as Chloe Payne.