Some bad dreams can be a sign of something bad happening.
I have had bad dreams before where my aunt had died and was on life support for a week before shed died.
Then about a month later I got a call and she actually was on life support and about to die.
She was only 58 years old and everything that happened to her had happened in my bad dream so yes bad dreams can be a sign.
You could dream something bad and it actually does happen.
But not all bad dreams will come true but it's possible.
Bad dreams effect around 2 to 3 percent of people and prevent them from sleeping properly at night.
Bad dreams or nightmares can also be an indicator of mental health problems, such as anxiety, post-traumatic stress disorder and depression.