Update:
Got him into both his therapist and psychiatrist right away after my posts. They agreed to add yet another drug to his cocktail. So now along with the Lexapro and Trazadone, they've added Wellbutrin.
I agree he could or should prob be on some sort of disability with being unable to keep a job due to his PTSD, however he's back out there applying and interviewing. He's also going to get his CNA as he now feels he wants to get into the medical field to help people. He starts classes on October 9th. I admire his tenacity but he is dyslexic and ADD as well, I'm not sure how he'll get through this course. I'm being supportive of his new endeavor, but as always, bracing for the roller coaster ride.