The fortune teller said he couldn't live for seven days _ What does the fortune teller mean by living for seven days?

Is it true that the fortune teller said that I can only live for a few years?

Please don't believe Mr. Yunming's nonsense. I remember when I was a child, I was afraid of the dark and always thought there were ghosts in the world. As a result, my mother invited a fortune teller to give me luck, saying that I wouldn't live to be 17 years old. My mother didn't believe me, so I invited another fortune teller to do the math. As a result, what they said came true, and now I am