Whenever we spoke, there was something medically wrong,” the pal said of the “Gossip Girl” star’s health “curveballs.”

NEW YORK (WABC) -- The cause and manner of Michelle Trachtenberg's death are undetermined, according to the New York City Office of the Chief Medical Examiner. Trachtenberg's family objected to an autopsy for religious reasons so the medical examiner's office was unable to determine how she died.

More details about Michelle Trachtenberg's final days continue to emerge, with a former colleague sharing her plans before her tragic passing.

Michelle Trachtenberg, an actress best known for her roles in "Buffy the Vampire Slayer" and "Gossip Girl," has died at age 39.

Police told the Post that Trachtenberg was found "unconscious and unresponsive" by police and was pronounced dead by EMS workers. Her death is not being treated as suspicious, police sources told the outlet,

Michelle Trachtenberg’s producing partner, Casey Tebo, shared his final conversation with the “Gossip Girl” star before her shocking death. Trachtenberg passed away on Feb. 26 at the age of 39, as The Post exclusively revealed.

Michelle was thrown a lot of curveballs with her health, but she did her best not to let it get her down,” Michelle Trachtenberg's friend said

Michelle Trachtenberg, beloved for her roles in 'Gossip Girl' and 'Ice Princess,' faced numerous health challenges before her untimely death at 39

The death of Michelle Trachtenberg one week ago was definitely a shock, and tributes to the late actress have ben rolling in from the Buffy cast and more. While her passing was a surprise, Trachtenberg’s friends recently opened up about the health issues she'd be not-so-privately dealing with.