I have "complex" PTSD, because basically my entire life from birth to age 36 was trauma with very occasional breaks of "good". In other words, in my life, the trauma (primarily abuse) came from so many sources and occurred in so many environments that I essentially had nowhere to escape to, aside from grandparents I visited once a year and uncles I saw once in a great while as a teen. And they didn't know what was going on; they were just safe people/places for me.
For me, because the trauma was so varied, I don't even know all of my triggers. Something completely innocuous to others can have me gibbering in a corner in a full-blown panic attack. The wrong touch or movement from one of my partners can send me into a flashback, in which I genuinely do sometimes believe I'm back in that setting rather than in the present.
And I'm missing some fairly huge chunks of memory of my life before age 36...and smaller chunks of my life since.
So as others have said... the effects of PTSD on the person who has it, and how they cope with and manage it (or not) would depend on the cause of the PTSD (war, abuse, a single incident, a lifetime of incidents), and on the individual's personality, what type of help they've received, etc.
I have characters in several of my books who have PTSD. In some, it's identified as such because the character has gotten professional help and therefore a professional diagnosis. In others, the effects are shown but the disorder isn't named. The ones who've gotten help use coping strategies learned from their therapists or from good friends who know how to help them.
As for what I would like to see as a reader:
- *Accurate* depictions of PTSD. While the way someone experiences can vary, as KTC said, there are commonalities.
- Refuting of the idea that someone with PTSD just "has to let go of the past" and they'll be fine.
- In a story with a romantic relationship, avoiding the idea that true love "cures" PTSD and makes all the trauma go away. Not only is that grossly inaccurate, but according to readers who've contacted me about my books, that idea can be very damaging to PTSD sufferers who *aren't* magically cured by love.
If I think of anything else, I'll come back...