I HOPE Stephen King hasn't experienced most of what he writes about.
Stephen King writes mainly from imaginary.
If you want to know about something, don't you ask?
I would say yes. Except, in this instence it is a very indiviual thing. So say my survivor's guilt looks vastly different then your survivors guilt. Same symptoms (some more then others) but just like if one wanted to write a fictional character having PTSD, the first question I'd ask would be if they researched it and know the Criterian and symptoms and it
may help to give our personal experiences but they are vastly different dependant on trauma, person themselves, therapy or no and how far into therapy, support system, enviromemt and set of circumstances. Even my flashback looks different then your flashback. Disocissation also different. So though flashbacks and disocissation are both part of the symptoms, how they are experienced is an individual thing. Including comorbid, what other disorders and the remainder of what I had advised above.
So, I can say how my survivor's guilt is experienced by me but it is completely innacurate as it is my experiences and not the character's experiences.
What I'd do is find the symptoms, research how they
may play out in one's life and then start thinking of each of those symptoms, which ones will this character have and which ones out of them will the reader be advised of. It is intense guilt of why am I alive and they aren't so constant thinking on that would be approprate. Maybe thinking they don't deserve good things as the other(s) that died can't. Irritablity and mood swings. Emotional numbess. Flashbacks and nightmares of the event. Thinking of the meaning/purpose of life and those sort of big things.
That would be enough to start writing in a character's experience. Remembering that all experiences are individual.
Does the character have PTSD? BPD? (I saw BPD somewhere), any other cormobid disorders? Do the same with those. Is the event that caused survivor's guilt her only trauma? If not then flashbacks may have gotten worse. Or maybe the event that caused it made PTSD kick up. If that is the case I'd think she may have gone from super functional, maybe a professional, to not being able to leave the house. Or at least it tornadoed through her life and ripped it up. She has a boyfriend/lover/husband? Relationship issues. She keeps pushing him away and he doesn't understand. Maybe their relationship goes to the brink of break up and right before the cord is pulled she decides to get help.
Sorry, got carried away but
@RoselynJ, that is what I mean by individual experiences not being of help to you. All that above I just made up and it isn't based anything factual other then symptoms. I don't understand how indiviudal experiences (not stories but experiences) would help you make it accurate as if you combined info from everyone's experiences it would still be innaccurate as that is our experiences and not the character's. Symptoms are the most accurate info one can go off of. And symptoms can be found on the internet.
Please understand, I am not saying you should or shouldn't ask, I just don't understand how anything beyond symptoms would help you. That's all.