I have bad dreams often, most of them usually don't have anything to do with my previous "trauma", usually other stressors going on in my life but I suppose in a roundabout way a lot of those stressors came from my home environment growing up. Anyways, I had a real bad one about a month ago to when I woke up, I noticed my carpet was wet and that while I was tossing, I had accidentally knocked my water cup (and other knick knacks) off my nightstand and was getting a bruise on my hand (I guess I smacked it at some point).
These are the moments when I wish I had a S.O to wake up to but I personally just can't sleep in the same bed with just ANYBODY. Our subconcious is trying to process ideas/thoughts/concerns that we have throughout our day. Sometimes you get one that's hilarious and other ones not so much, though one thing I do that helps is I find humor in my bad dreams. Like one I had the other day about having to evacuate my school, through all of the stress/issues going on in my dream, I STILL remembered to grab the red emergency folder with my class list in it, LOL.