Hi Tired, welcome to PC. I agree with the others about asking for a longer session time and asking to email. Would he be willing to do sessions with you over the phone the weeks he's not in town? It may take a lot of persuading but maybe if you can convey to him how hard on you it is to go that long without a session. Those long anxious waits make the process even more tortuous. Not really fair in my opinion.
I also wanted to acknowledge how horrible it is for your trauma to have been sensationalized by the media too. That's an added element that would make it even more terrible. I have found writing does wonders for me, but since it makes you more anxious would drawing or painting or some other medium work better for you? I can't draw or paint very well otherwise I would find those therapeutic. Of course I usually don't journal about the trauma itself, that would make me feel worse too. I have to write or journal about other stuff or what's currently going through my head. So it might be useful to try journaling about something not related to the trauma.
I recently had to quit therapy after three and a half years and I never really got past a lot of the stuff you're dealing with to be honest. I never got rid of the therapy hangovers, the flashbacks, the aftereffects, the ripples and shockwaves talking and being vulnerable produced even more. However my therapist never made sure I was okay or utilized some of the techniques others on here have mentioned before leaving my sessions. Most of my therapy time, I had to go straight back to work afterwards. It was double hell.
The good news is you found someone who has heard of and believes in C-PTSD. I recently came across something about it somewhere and a lot of it sounded exactly like me, especially since I'm borderline. However, I asked some therapists around here and they'd never heard of it. I wasn't surprised but figured I'd ask anyway. It was also consistent with some stuff I'd been reading in a really great book on PTSD that I found recently. It's given me a lot of information and useful, practical knowledge that I was never given in therapy. I found that supplementing my therapy with books on my issues was a good way to bide the time in between sessions and answer a lot of lingering questions that it will be killing you to know after you start pondering stuff later. Plus when you read something that describes you exactly you will be relieved to know at least one person out there understands, even if it is a stranger author you've never seen or met. Will help it all be a little more real because you'll have proof in a book that your symptoms, feelings, and all the stuff that makes you feel so messed up & crazy exists.
And you've now got the resource of this board and site. Wish I had found it a looong looong time ago. Lots of great info on here and lots of people willing to lend an ear, hug, and some support. Welcome.