First, the good news about Cptsd. It is a learned set of responses, and a failure to complete numerous important developmental tasks. This means that it is environmentally, not genetically, caused. In other words, unlike most of the diagnoses it is confused with, it is neither inborn nor characterological. As such, it is learned. It is not inscribed in your DNA. It is a disorder caused by nurture [or rather the lack of it] not nature.