I have found that just being frank with my T helps. I often stay very much on the low end. Not that I will take action... but just that I walk a very very very fine line. What I find is that by letting my T know what is going on, T can use his skills to help assess where I am. He gets to really know if I am in danger verses the usual "I wish..." stuff that PTSD causes me to have.

It is good to talk on PC as well.