What is ptss? Anyway, I think recognizing you have a problem is the first step to dealing with this. So for that, you should feel a little better your on to a solution. You need self control and that´s a compromise you need to make for yourself. You just need to try it once to realize how to do it and how well it works. If a discussion between you and your husband begins talking slowly, with a low tone will help. As soon as he says something that irritates you, this is the precise time you need to remember: wait! I will not let my anger get to me... And you keep your low tone and keep calm. It´s not easy, because it is easier to explode. But just remember how horrible it is to feel that you´ve been mean and have said words that you never meant, and then having to ask for forginevess if you ever do.
It is a practice you need to have daily with yourself. It´s controling your anger management and keeping yourself calm.
Remember that peaceful people keep healthy minds and hearts and logically keep a happier life. You need peace in your inner self and mantain it! Your husband needs it too and your home consecuently!
Another great idea is to tape yourselves when fighting, obviously leave the video camera hidden and wait for a discussion, but you´ll be able to see a mirror of yourself and let me tell you doing this opens your eyes inmensely to want to change even more! You´ll feel dsgusted with yourself and that will make you want to do this sooner and better.
I hope this helps a bit.