I don't study much, hehe, what I know is that there are three kinds of general dreams: the first one is that it can't be realized in real life, but it is realized in dreams, that is, as the saying goes, thinking during the day and dreaming at night is functionally the realization of wishes; The second is the fear of being magnified, just as you dream that your father is sick or even falls to the ground, which is an invisible release of negative emotions in function; The third is physiological reaction. For example, kicking a quilt may be a dream of fighting or running. Teenagers often dream of falling from a height, but it is actually the physical pain of long bones, and so on.
You belong to the second situation now. My father drinks heavily. For a while, he got drunk and lost his mobile phone wallet or something. Those days, I dreamed that my father was drunk and had an accident. Drunk and hospitalized, and so on. That's a concern for his father. If you are not at ease, take your father to the hospital for a comprehensive examination. It is normal for the elderly to worry about their children. If he is worried, he will be examined.