Cao Cao knew he was going to die?

Cao Cao suffers from brain diseases and sometimes has seizures. Near old age, brain diseases occur frequently, and it often hurts to sleep all night. Can't this disease be cured? Don't! There are still some treatments. At that time, Hua Tuo, the imperial doctor, gave Cao Cao a treatment suggestion, but Cao Cao not only failed to adopt it, but also blew out the only imperial doctor in the world who could save him. Through careful diagnosis, Hua Tuo diagnosed that Cao Cao had a brain tumor and needed surgery. Cao Cao was frightened when he heard that he was going to cut a knife on his skull. Hua tuo encouraged Guan Yu with his deeds of scraping bones and treating poison, but it was useless. Because Cao Cao is not afraid of pain. Will a generation of lean men be afraid of just a little pain? This is not a joke! Cao Cao is suspicious by nature. When he heard that Hua Tuo was going to have a head operation, what he considered was not the feasibility of the treatment plan, but the suspicion of Hua Tuo's motivation. His naturally suspicious character determines that he should take saving people as his life. So he refused the only chance to save his life and angrily threw the imperial doctor out of the door. Later, history proved that Cao Cao died of brain disease; And this brain disease, if not refused by Cao Cao himself, would have been cured by the imperial doctor Hua Tuo; In other words, if Cao Cao didn't insist on keeping this brain disease himself, there wouldn't be a brain disease. So it can be said that Cao Cao insisted on leaving this brain tumor and let his life end because of this brain tumor-isn't this tantamount to suicide?