Did you notice over the time you spent as a nurse (thanks) that most people had opinions about different maladies based on a cocktail party conversation or what they saw in a movie or on a TV show, but rarely based on a curiosity that lead to some reading and research? Most times they have preconceived ideas but rarely questions?
I did when I had to explain hepatitis C to my family and close friends. No one knew that the first cases were wounded warriors that got plasma on a battle field. They did know that junkies got it from dirty needles, like aids, but not that anyone that had a blood transfusion before 83 was at risk. A lot of people weren't worth explaining it to, they thought I had something in my past and I didn't care what they thought anymore. Sadly, Family too. I was offered prayer but not much more cuz I don't believe.
For me, PTSD is like that. I had one person offer me consolation that "just because they say you have it doesn't mean you really do". I guess they thought that having PTSD meant you were doomed to have a flashback and drive off a cliff or something.
Everyone knows something but no one ever asks you what its like so they might understand it.
sorry, you asked for help and suggestions but I just comiserated. yeah, I get that. Very similar at least. It gets better. There is more research now than ever before. I am hopeful that we will get better help and lead better lives because of it. Hang on. Be glad your wife is "wonderful".