I believe that this thread has been taken off course and arguing between yourselves as to how PTSD is classified or should not be classified is counter-productive to helping the OP with an answer to her question.

Regardless of your personal beliefs and arguments with the DSM, the fact is that PTSD is not something "just in our heads". Very often help is needed from a licensed T or social worker in order to work through the PTSD so that our thoughts/feelings/reactions/behaviors are brought back to a more comfortable space.

Please keep the answers/posts directed to the OP and assist her with her understanding and not arguing between each other on wording.

Respectfully,

sabby