Horrible nightmares

I had my bad dream/ hallucination saturday night. When I woke up  the next morning my back was sore all over like last time. I got really  scared this time and had to get up and watch some TV before I could  fall back alseep. The next day I was cranky and I had to go visit my  grandma. I can't help but think about how I have this bad dream happen  to me around this same time every year. This time it was even worse  than last. Instead of just  the feeling of being paralyzed, I sware it felt  like my blanket was strangeling my face. And the room felt angry. I know  it must be the stress, I already have been told that my stress is the  cause of all of my rashes and extreme anxiety of the past few weeks.  But these dreams make me feel like I'm being possessed.