My doc offered me a medication for it once, but he had just taken over my case from someone I’d be working with for several years, so I was very much like 👀 Kinda curious about it.

PTSD and/or adrenergic POTS are two possible causes off the top of my head. I have both - the latter is causing my nightmares. My body is sending out random adrenergic spikes throughout my day/night. When I get a spike at night I get nightmares. Luckily, clonidine helps suppress them and gives me a better night sleep. Check with your doctor - maybe something similar will work for you

Vivid and graphic dreams can be symptomatic of PTSD. There are trauma therapy modalities as well as medication that have have proven to be effective. -clinical social worker