Could a car accident add more problems to my posttraumatic stress disorder?

There are many types of traumas, and they certainly can compound on one another as you experience them. Without treating the traumas, or incidents where you felt there was a significant risk to your safety or that of others, there can be a cumulative effect. What we have learned in the mental health field from studying traumas, is that the body as a whole responds to these stressors in order to keep you safe during the events. If the body does not realize that it no longer needs to respond in this way because the event is now over, and then receives a trigger from a new event, it makes sense that the new event could cause additional issues. Both of these events can be addressed with the help of a Counselor. There are many Counselors that specialize in trauma inside and outside of the VA, so shop around if you are able and find someone that you connect with.