I experience some same of flashbacks and such and mostly I take one med for panic and anxiety as one other has mentioned above Klonopin or Clonazepam the generic, it helps me a great deal with anxiety and panic also sleep. I believe that you can even as I have experienced have panic attacks in your sleep, also Effexor XR can be helpful with OCD panic and anxiety.

Best of luck with your pdoc and all the anxiety.