Discrimination from Insurance Carriers

This is an interesting question, and as such I hope its clear cut:

I was hit by a drunk driver in October of 2014. A lady in AZ blasted through a red turn arrow and T boned me while I was coming through the intersection on a green light. She was high at the time on vicodin and benzodiazopines.
I started seeing some symptoms that are very clear cut stemming from what I believed to be PTSD. Lack of sleep, nightmares, panic attacks, anxiety, flashbacks occurring during clear intersections and any time I saw a red car. I was irritiable, irate, job performance was suffering, physical conditioning and health were also detoriating, and I gained weight.

Fast forward to now: I ve been seeing a counselor for quite some time now. I ve hired an attorney to represent me and my claim against the Hartford insurance company since every time I ve spoken with the Insurance adjuster he flat out refused to believe that I had any sort of PTSD stemming from this car accient, and on top of that, stated that I had PTSD from my time in the military (It should be noted that I never mentioned my military service to the Hartford, I was being insured by USAA so I think an assumption was made there).

So I two issues wrong with this adjuster: first, he has made a very bold and broad statement saying that I had PTSD from my time in the military (I ve never deployed), and I see this as discrimination. Im also of the belief that he is very much in the wrong for attempting to make a medical diagnosis when he is clearly not able to do so.

So finally, after a long wind up-how many have had this happen to them, and what was your course of action and end result?