AceShowbiz - TikTok star Taylor Rousseau Grigg's cause of death has been revealed as complications related to asthma and Addison's disease. Grigg passed away suddenly and unexpectedly on October 4 at the age of 25.

A representative for Grigg's family confirmed to TODAY on Thursday, October 10 that the social media star suffered from both conditions. Addison's disease, also known as adrenal insufficiency, occurs when the adrenal glands do not produce enough of the hormones cortisol and aldosterone. It can be life-threatening if left untreated.

Months before her death, Grigg had been open about struggling with a mystery illness. In an August TikTok video, she revealed that she had been sick with an unknown ailment since marrying her husband Cameron Grigg. She described feeling like she was "fighting for life" and often in pain.

Grigg's health struggles had taken a toll on her and her family. Her husband Cameron set up a GoFundMe to cover hospital and funeral costs, which has already raised over $40,000.

Grigg's passing has shocked and saddened the TikTok community. Her fans and followers have shared their condolences and memories of her online. In a tribute post, her sister Bailey noted that Taylor had always wanted to make a difference in the world, adding that "her influence has only just begun."

Grigg's legacy will live on through her social media presence and the lives she touched. Her family and friends are honoring her memory through organ donation and a benefit in her name. They have expressed their gratitude for the outpouring of support and love during this difficult time.