I dont use either really. I have PTSD but I refuse to be a sufferer. I do suffer with it but I am not a sufferer. To me the term sufferer feels defeatest. I am determined to reclaim my life and I refuse to let PTSD win. I am a survivor of my crash but not of PTSD because that's a thing I'm still working on. I'm lucky too. I often think to myself I'm lucky despite all the bad things.