I had a recurring nightmare of a black parasite sucking the life out of me. Sometimes it waited for me to go sleep in dark corners of the room. I was very stressed during that time, and my cats would come sleep in bed with me. I got an itch on my chest where I dreamt the parasite was sucking the life out of me, then I got sick, and felt a pea-sized lump. I went to my doctor and they ordered a biopsy. As it turned out, I had male breast cancer at the age of 28. After I recovered, the dream never came back, and my cats went back to sleeping in their usual places, not on my bed. The dream was creepy, but what made it for me was my cats protecting me.