I'm seeking some understanding from certain people so they can understand why I act differently at certain times, e.g. go from being in a really good mood to instantly becoming really moody and intolerant without any reason noticeable to them (because something might trigger me and with milder triggers I tend to become really snotty if I can't get away from the situation), or not want to show up to family parties (because of the alcohol being a trigger). And so they, my grandfather at least, can realise that some of the remarks made at me (my grandfather intentionally making comments that he knows upsets me), really stress me out.
Perhaps if they are aware of some of the symptoms of PTSD they can say 'okay, that's why she did this, or acted this way, or why she has nightmares', even if they don't know all the details of the cause.
With that understanding could come better tolerance, in turn getting a weight off my shoulders that will help me feel better enough to be able to work on getting better. It's hard to recover from something on your own.