Frequent nightmares and moaning noise

Hi, I was wondering if anyone could help me find out what is wrong. As a child I suffered from sleep paralysis but now I have a different problem regarding sleep. For the last few months I have been plauged by frequent nightmares. Some of the topics are terrifying e.g. Someone trying to kill me, some kind of spirit taking over my body but some are just silly e.g. the nightmare climaxed with me making a moaning noise (Which I also made in real life) instead of doing some public speaking.

Anyways, when these nightmares climax I make a low pitched moaning noise which can be quite loud. Interestingly I also make the same noise in the dream and wake up straight after. Today I was shaking as I woke up and cant sleep.

Could this potentially be stress related, or could it be symptoms of something else?