In case you were unable to find the thread Jen is speaking of here it is:

Secondary PTSD - What Is It In Relation To Spouses?

However I agree, it is best, if you have specific questions regarding PTSD, to address the sufferers. We could answer, but they understand far better than any of us here, as Jim says they are living it. The Carers forum is primarily for learning how to cope with and help a PTSD sufferer, but if you have PTSD yourself, there is a wealth of information and many members with PTSD who are quite willing to talk and help. It is a great resource we have here.