Is there a defined boundary between trauma reaction & dissociative?

Question

PTSD sufferers are known to respond uncontrollably if a subsequent similar circumstance arises, until the crisis is dealt with. People with a dissociative identity may be taken over in similar circumstances. Certain research indicates that about 85% of DID cases arise from trauma in early childhood and the remaining cases all have a common factor of (probably inappropriate) attempts at therapy.
The differences between PTSD reaction & DID appear to be 1) the awareness or otherwise of the subject 2) the length of time the subject takes to deal with the crisis.
Is there an objective boundary between PTSD & DID?
What other defined differences exist between DID & PTSD?

Answer 1

I believe I have PTSD and yes, I am slowly developing traits that may be disassociative. I have uncontrollable crying spells so I am uncomfortable about leaving my room. I used to love the Christmas season but not anymore. I hide from my family and rarely "feel" normal or connected to my former self.

I have no idea how to get out of it. My crisis has been ongoing for over 3 years and will likely haunt me even more.

I was exposed to a money laundering operation and I feel desperate to uncover it so I will be permanently cleared in the investigation. But instead of treating me with sensitivity for my situation, the policeman treated me as a liar and worked at least 2 hours to discredit me.

If my husband killed someone I could be cleared easily, but since marrieds share finances as one, I will certainly be presumed guilty by association. I can't sleep. I cry ALL the time.

Is this a form of DID too, or all PTSD?