That's really very quick to expect her to make a full assessment and diagnosis. I hear what you say about your knowledge but training to be a therapist is much more involved than doing a degree - she will have had a lot of supervised practice, her own extensive therapy and, as much as you may not want to hear it, her 40 years experience will give her something you don't have - a knowledge of the very many and varied ways that people present with the same or similar disorders.
You could follow the dsm criteria for a dozen or more disorders and fit your husband into one of them. Similarly 6 different people with the same diagnosis will present in completely different ways - I hear your concern for your husband but unless you have reason to think she is incompetent - other than her just not agreeing with your "diagnosis" - I think you need to trust her to do her job.
I've been in therapy on and off for many years, my husband considers it to be something private and personal to me and wouldn't dream of suggesting my therapist was wrong, unless I had concerns myself. Two sessions in is too quick, in my opinion, even if she did diagnose PTSD, your husband has a very long road ahead in recovery and that work can start regardless of diagnosis. It's also worth bearing in mind that sometimes a formal diagnosis can do more harm than good.
You seem to be hanging a lot of emphasis on getting this diagnosis - what makes it so important to you given she and your husband can do good, healing work without it?
You could follow the dsm criteria for a dozen or more disorders and fit your husband into one of them. Similarly 6 different people with the same diagnosis will present in completely different ways - I hear your concern for your husband but unless you have reason to think she is incompetent - other than her just not agreeing with your "diagnosis" - I think you need to trust her to do her job.
I've been in therapy on and off for many years, my husband considers it to be something private and personal to me and wouldn't dream of suggesting my therapist was wrong, unless I had concerns myself. Two sessions in is too quick, in my opinion, even if she did diagnose PTSD, your husband has a very long road ahead in recovery and that work can start regardless of diagnosis. It's also worth bearing in mind that sometimes a formal diagnosis can do more harm than good.
You seem to be hanging a lot of emphasis on getting this diagnosis - what makes it so important to you given she and your husband can do good, healing work without it?