A couple of months I read a couple of books about energetic vampirism. People who are energy vampires, don't know how to get their needs met in healthy ways, and can be really hard to be around because of their effects on others.
I remember in one of these books, the author talked about "chasing dreams" and said that while asleep, energetic vampires can unconsciously use their astral bodies to "chase" those they want to extract energy from.
I had chasing nightmares that went on for years and years involving my mother, and believe the author is right.
I think you are wise to pay attention to these dreams. They have a lot to tell you about what is going on in your life.