A cause of death has been revealed for Taylor Rousseau Grigg, the TikTok star who died last week at the age of 25.

The family’s update comes five days after Taylor Rousseau Grigg’s husband, Cameron Grigg, announced his wife’s “sudden and unexpected” death on October 5 on Instagram and also in an update on GoFundMe.

“No one ever expects to have to deal with this kind of pain and heartache, especially at our age,” Cameron Grigg wrote in his Instagram post.

What happened to Taylor Rousseau Grigg? Cause of death and diagnoses revealed

Taylor Rousseau Grigg died on October 4 after complications from asthma and Addison’s disease, a representative of her family told TODAY.com in a statement. TODAY.com has reached out to Cameron Grigg for comment.

Addison’s disease, also called adrenal insufficiency, is an uncommon chronic condition that occurs when the body does not produce enough of certain hormones, according to the Mayo Clinic.

In people diagnosed with Addison’s disease, the adrenal glands produce too little cortisol and often too little of another hormone called aldosterone.

Symptoms of Addison’s disease may include extreme fatigue, weight loss, loss of appetite, low blood pressure, low blood sugar or hypoglycemia, nausea, diarrhea, vomiting, abdominal pain, muscle and joint pain, irritability, and depression.

When patients develop acute adrenal failure, they may also experience symptoms such as severe weakness, confusion, pain in the lower back or legs, and decreased consciousness or delirium.

Asthma, another condition with which Grigg was diagnosed, causes a person’s airways to narrow and swell and may produce extra mucus, according to the Mayo Clinic.

Asthma can make breathing difficult and can also lead to coughing, wheezing and shortness of breath. In some cases this can lead to a life-threatening asthma attack.

What did Taylor Rousseau tell Grigg about her health?

Taylor Rousseau Grigg discussed her health issues in a TikTok posted on August 8, without sharing a diagnosis.

She told her more than 1.4 million followers that while she had once been “very athletic,” she was now “not healthy and in good shape” and had not been for “a long time.”