Demons in your mind by Jessica Girke

Since a mission gone wrong CIA-Agent and former Navy SEAL Nate Sheppard is suffering from nightmares, anxiety and PTSD. In the last ten years nobody could ever help him, leaving him to experience the terror of his past over and over again.
But when Lynn Summers starts as the new doctor at the CIA headquarters there is new hope. The brunette female radiates a warmth, that melts the ice around Nate’s heart and let him see a light at the end of the tunnel.

Can she help him fight the demons in his mind?
Will she be able to finally heal him or break him even further?