I Fought Ptsd and Won.
Several years ago, I was in two fairly spectacular car accidents within two weeks of each other. The first one actually involved my car flying off of a mountain an in to a flooding river; the second involved being at the mercy of a jerk who was driving 70 in several feet of snow in the mountains, knowing that we were going to crash. When we did, it really wasn't so bad.
But I was severely injured emotionally. For a while, if I had to ride anywhere in a car, I'd lie down in the back seat and actually cry. In the middle of the day, in the sunshine. It filtered into every single area of my life and I was just a nervous, hypervigilant wreck for about 3 years.
Then I decided I had to quit smoking. Smoking made me too nervous, I thought I was always having a heart attack or an asthma attack. So I got a guided imagery "stop smoking" tape, which I would listen to in bed. It involved floating on a raft in calm, warm, blue shallow waters. I started to realize that I could control these emotions and calm myself, and that the fear was what was so frightening - and the fear was within my control. This took about a year to accomplish....
...And it cured me. (Didn't stop smoking then by the way, that took another few years). No meds, no counseling. Which isn't to say that I couldn't have used both, I certainly could have.
The guided meditation worked for me because I wasn't in a strong enough position to control my racing thoughts and fears with other meditation techniques. So the passivity of the exercises were very helpful.
I highly recommend trying different meditative techniques to people suffering from PTSD. The power of your mind is astonishing. It is entirely your mind that is causing your pain and anxiety...if it can have that much power over you, it can also give that much power *to* you.
What could it hurt? Give it a try, and be patient with yourself. There are thousands of free websites about just this. I have been without significant anxiety now for 15 yrs, and there were certainly times when I never believed I would be free.