I had a fallen out with a friend recently and it has been on my mind. I usually sleep fetal but this night I was lying straight. In my dream, my friend was there but we were not speaking, she was just standing there, While she was standing there I felt something behind me creeping up. Suddenly, this cloud appears swiftly, I guess a spirit, comes right to my face about to suck the life of me via the mouth. I jolted out of my sleep with a scream. I was freaked. What does this mean? I am scared!

Our brains work in ways we have not even begun to understand.
This is true when it comes to dreams. Scientists do not know why we do.

Many people think it is how the brain deals with problems while we sleep.

No one can say for sure.
But it could be because you had a falling out with your friend and feel bad about it, your brain was trying to understand it, or deal with it.

I don't think it means anything bad, it is just how the brain works at times.

Your mind an dreams can be scary and confusing. In order to interpret your own dreams and experiences as accurate as possible, know your own history, pay attention to frequently occurring dreams, and if violence increases with these particular dreams, try to open up to different methods you may not have ever considered.

First eliminate actual medical or physical symptoms, lack of sleep and stress are always quick to be blamed. Then depending on your beliefs and your willingness to be at ease, look into blessings either from priests or preachers, native american spiritual leaders, and/or help from friends who may be into protective magic.

Good Luck, I've had things happen to me all my life, but they are getting worse. Especially in my dreams