the Sword of Damocles hangs over someone

If the Sword of Damocles hangs over someone or hangs over their head, they are in a situation in which something very bad could happen to them at any time. As a Grand Prix driver you have the Sword of Damocles hanging over your head at every moment. He lives with the illness, knowing that it is a Sword of Damocles, hanging over him. Note: This expression comes from a Greek legend. Dionysius, the ruler of Syracuse, was annoyed by Damocles, who kept flattering him and saying how much he admired him. Dionysius invited Damocles to a feast, and asked him to sit in his own seat. When Damocles looked up during the feast, he noticed a sword hanging by a single thread above his head, and so he could no longer enjoy the feast. The sword symbolized the dangers and fears that rulers have, in addition to all the privileges.