Hi lal81, I just wanted to express my support to you. I don't typically have nightmares, but found some info that might help. I pretty much did a google search.

Ending Nightmares Caused By PTSD : Shots - Health News : NPR

Adult Nightmares: Causes and Treatments

https://www.helpguide.org/articles/p...s-disorder.htm

https://www.psychologytoday.com/blog...s-after-trauma