After completing an 11-day tour of Australia and Samoa, Queen Camilla was deeply affected by the possibility of her husband's tragically brief reign.

Queen Camilla, 77, cried during a traditional farewell ceremony in Siumu, Samoa, when the ailing monarch, 76, gave a poignant address after being given the honorary title of To'aiga-o-Tumua, or "paramount chief."

"I shall always remain devoted to this part of the world and hope that I survive long enough to come back again and see you," King Charles said. "We shall take away with us, I promise you, very special memories of our time here."

Queen Camilla's eyes were filled with tears, even though she tried to hide them beneath a fan.

According to a source close to Queen Camilla, the profound comments struck a chord with her and prompted her to confront the anxieties that have been tormenting her for several weeks or perhaps longer. Somewhere deep inside her being, she must be terrified that King Charles is passing away and that she will be left to face the rest of her life by herself.

It is impossible to predict how Queen Camilla will keep up with royal life without King Charles. During his speech, she must have thought about all these things concurrently. Additionally, the insider stated that it was evident in her tears.

According to The National Enquirer, many in Britain believe King Charles has little time left. His weak appearance on tour has raised health concerns.

King Charles stopped his cancer treatments on vacation, but his swollen, irritated lips seemed to be chemotherapy aftereffects, The Economic Times reported. Meanwhile, two doctors supposedly traveled to monitor the king.

He reportedly carried blood for emergency transfusions. After surgery for an enlarged prostate, King Charles was diagnosed with an unknown malignancy in February. The palace claims the king has no prostate cancer.

According to the source, Queen Camilla worries King Charles is overworking.

According to the insider, his work ethic is so strong that he cannot tolerate the concept of wasting time when other members of the royal family are crammed with work commitments. He contends that it is not equitable for William to be obligated to have additional responsibilities.

Even Princess Kate has ventured back to the workforce, albeit on a limited basis, following her battle with cancer. King Charles is eager to contribute in any way he can. The source went on to say that Camilla is concerned that what Charles believes he is capable of doing and what he is capable of doing are two different things.

King Charles' hectic schedule may affect his disease survival, and he may not follow physicians' directions. According to the source, Queen Camilla is witnessing all of this firsthand and must feel helpless.

Others say Queen Camilla must be affected by Prince Harry and Meghan quitting their royal duties and trashing the monarchy, Queen Elizabeth's death a year and a half after Prince Phillip's, Princess Kate's abdominal surgery and cancer diagnosis--she's in remission, and King Charles' life-and-death struggle, as per The Independent.

The insider stated that Queen Camilla is trying to be strong but experiences periods of dread and anguish just like everyone else. She thinks that time is running out for King Charles and their relationship that will last a lifetime.

Business Times has reached out to King Charles and Queen Camilla for comments.