How to get my husband to get help for ptsd(iraq)? And how do i deal with my own problems without his support?

He is angry all the time, i am angry all the time. I cant understand his mental games, and he cant understand my physical pains. I have degenerative disc disease and facet disease of the lumbar spine. Osteoarthritis hands, hips, knees, feet, shoulders, and right jaw. I am 23 and been fighting for 3 yrs to find all this out and why im hurting so bad. and even now that we know. He does not help me do anything. He doesnt help me. He just sits and plays war games on the playstation and bosses and cusses me. When i try to talk to him, i get cussed or he makes a joke out of it and me. I have been called an ignorant B***h so many times im starting to believe it. He gets VA disability for it but refuses to make the call for help. Im sure he feels like he is fighting this battle alone, because that is how i feel. He acts like a mad teenager when i try to talk to him, first line of defense is cuss and yell, put me down.