Please help me interpret this bad dream that I had? it really scared me.?

So in a nutshell this dream I had; scared me like no other dream. This Linda Blair lookalike monster was laying in my bed; making all kinds of growling sounds, and talking in this muffled voice. Well as the dream progressed I remember seeing these people in white toxic suits slowly approach this heavily sedated monster; this monster pops up while wrapped in a sheet, and goes after the men in the white suits. The last thing I remember is standing out in the road looking at the house. My aunt asked me just what I thought I was doing, and then my step dad came to the door telling me to come back in. At this point I ran down the road, and I heard him whisper to my aunt I will go for her. As I was running I heard these blood curdling screams, and a long drawn out moan. It got to me pretty bad.