A South Carolina personal trainer, whose body was found after she vanished, died from heart problems following a “full mental crisis,” the coroner said.

Elena Moore, 39, died from complications of cardiac dysrhythmia with premature ventricular contractions, Lexington County Coroner Margaret Fisher revealed.

Fisher added that the manner of death was natural and that authorities “never saw anything that indicated homicide.”

The trainer was last seen at a Planet Fitness in Lexington — about 14 miles outside Columbia — and heading toward a wooded area behind a nearby Lowe’s Home Improvement store on June 11.

Her body was found days later on June 17, with neighbors reporting that she’d been exhibiting strange behavior in the week leading up to her disappearance