Air Force veteran April Stewart, 51, lives in Perkinston, Mississippi, where she founded the nonprofit Gulf Coast Primate Sanctuary. When I became an empty nester, some problems I’d been suppressing for years came flooding back: nightmares, panic attacks, insomnia. These were symptoms of PTSD related to a sexual assault I’d endured while serving in the military. It got so bad I had to quit my job, and I felt totally isolated.