Actress Chang Shinyoung feels pressured to return to TV series after 3 years... rushed to hospital

Actress Chang Shinyoung appeared on the show "New Product Launch: Convenience Store Restaurant" and revealed the circumstances that led to her being taken to the emergency room.
In 2TV's "Convenience Store Restaurant" (hereafter "Convenience Store Restaurant"), Chang Si, who has returned to his main job after three years, is spending his days busier than anyone else.
Nyeon's daily life was revealed. In the video released on this day, Chang Shin Young said, "I am really grateful that I am going to be the lead in a TV series. I read the article and it seems that it's been three years since I last did it.
When asked about her family's reaction, she shared the cheering her older son had given her, and smiled. She then shared a heartwarming story about her and her older son.
Chang Shinyoung said, "A few days ago, I suddenly felt unwell and went to the emergency room." As this is his first TV series in three years, he is under pressure to "do well."
"After the test, I contacted my older son, and he sent me a message that gave me strength," she said.
What was the eldest son's mature message of support that gave strength to his "mother" Chang ShinYoung?
This was revealed during the program.