Things in dreams are contrary to reality. I remember dreaming that my family died, and I was scared. In fact, there is nothing wrong. My family is really getting better and better (my grandmother is better than before after she got diabetes). Although I don't believe in superstition, I still want to get lucky. In Duke of Zhou, it is said that whoever dreams of death in the family will live a long life.
In short, don't worry too much, because this is not the case. Otherwise, everyone has the ability to predict the future. Isn't it a mess?
I hope my proposal can help you.