just wanted to say there is a combat PTSD part of this forum at the top and they would prob have experience of this - but a private psych in my opinion would be good - the military may not want to admit he has PTSD if he has it.
big hugs to you and him and a huge thankyou to you both
__________________
Its not how many times you fall down that counts 
its how many times you get back up! 
(Thanks to fenrir for my Picture 
)
When you have come to the edge of all light that you know and are about to drop off into the darkness of the unknown,
Faith is knowing One of two things will happen: There will be something solid to stand on or you will be taught to fly.
by Patrick Overton, author and poet