Don't be superstitious about those ghosts. This is complete nonsense. Last week, my sister dreamed that she won the lottery. The next morning, she bought five lottery tickets, but none of them won, which made her family laugh. The good thing in her dream turned into an embarrassing thing in reality.
Don't make the dream so mysterious, as if it is of great significance to your later life. It's normal to dream. Everyone dreams.
I suggest you adjust yourself. You have to solve your dream by yourself, calm down and think about it. What events or people made you stressed during this period? Who do you miss? Still thinking about the old house? Do you still remember a scene with a mouse in the previous paragraph? Or is the pressure of work and study too great during this period, or do you suddenly feel uncomfortable in a new environment? Find out the reason and try to overcome it.