Yer, I agree with Evelyn, that you need to probably tell us what has set you off recently, so it can be pulled apart. Myself and another on the PTSD course suffered anger pretty bad, in the sense that your talking about actually. It was the pulling apart of this, basically by the course members, that really helped me understand, that I didn't need to get this way, and that by walking away was a good response.
By reducing my alcohol, that actually lowered my angered responses dramatically, as I covered everything with it, and was drinking quite heavily to keep things suppressed. Well, now I don't drink much, and I don't suppress much, which actually helps me keep my anger under control. I have recognised what is PTSD anger, and what is normal anger. Normal anger is good, and its actually unhealthy to not get angry at some point. The problem was, I would just walk along the street, pass someone who looked at me the wrong way, and knock them out. I had stabbed people in defending myself, swore, beaten and broken peoples bones, and injured myself obviously during some of these things. I think I know where your coming from.
Yes, we can help you. Evelyn has helped me during the course, and no doubt we can all help you now.