Can i get ptsd from nightmares?

Ive wondered if Ive gotten symptoms of PTSD though nightmares. Most nights I have dreams involving death and torture such as people burning puppies alive and being tortured to death by things like fish people burning me then freezing me back and fourth more and more each time until i shatter or teeth growing behind my teeth all the way down my throught all the way to my heart until my heart stops from growing teeth or being on a roller coaster where everyones getting decapated and having nails grow out of my eyes and watching someone cut off their dogs penis and put it on a stick to use to rape their babies with it. Anyways these dreams are very realistic and they cause my to be angry about them and bother me on a regular basis. I often find myself depressed about my dreams because I know this stuff goes on in real life even if not to me. Also I will frequently wake up from these dreams drenching in sweat and have to regularly wash my bedding. It gets so bad that my ex-girlfriend would sleep on the couch because I would soak the bed every night when we were still living together.