I gotta say one thing, being afraid to reveal too much is not accurate statement. I am not in a position to reveal much because of potential litigation. Insert lawyer joke here.
The Brotherhood of Locomotive Engineers and Trainmen (BLET) is really pushing the PTSD matter for engineers. Railroads have traditionally told you to man up and catch that next train, although that is slowly starting to change. Time off after an incident is at your discretion. I have done it both ways, taken time off and gone right back to work.
Currently, there is not a critical incident program set up. I want to change that. I want to see the people that railroad have a chance to get completely through these things.