Glad to know you are okay.
I heard about this when I was listening to the Phillip deFranco show today. It's terrible, so many injured.
To help with PTSD, I'd add, other than consulting a therapist if you feel you need one, to do some gentle tapping (forehead, side of eyes, under eyes, under nose, chin, below shoulders close to center of chest, below breast, side of body, top of head) and even if you've never done EFT before, just tapping moves the energy and it will help with healing. Also, if anyone is in shock, Rescue Remedy is a plant based tincture, you put four drops in a glass of water, it can mix with any medication and is safe to take. You can ask the health food phamacist for details if you're unsure, but it's like taking water and it has helped me a lot.
But tapping on yourself is free and readily available, since all you need is your hands, and it does wonders to help with inner turmoil.
Tapping is a good help, and I have read that you cannot do it wrong. Of course, a session or two with a trained pro is always good, but two psychotherapists have told me that you can learn it from youtube or reading, and there is no "wrong" way. Listen to your body.
EMDR is a great help also, but for that you must have a trained pro as there is a lot involved in the choreography.
Yes, I get the most out of tapping from my sessions with my therapist because she guides me and we go in depth to things that have been stuck within me for years. But once you start tapping, the energy gets moving and if it's moving, then it can transform.