Hi trace! Not sure but these articles could lend insight - copy and paste in address line. For some reason not working as link.

pro.psychcentral.com/complex-ptsd-and-the-realm.../006907.html

psychcentral.com/lib/an-overview-of-treatment-of-ptsd/000161

Each person responds differently to meds or talk therapy. Best to choose someone specializing in this field.