Insomnia or sleep disorder?

Every night for the past two weeks I've been having difficulty sleeping. I jump in my sleep as if id been scared. According to my husband I toss and turn and sometimes mumble. When he tries to snuggle with me I supposedly push him away like I'm afraid of him. Sometimes I wake up when I jump but I have no bad dreams. Infact I don't dream at all. I get about two hours of sleep because of this. Valerian and pion flower herbs relax me but don't stop the above mentioned from happening. What's wrong with me? I have been diagnosed with ptsd (post traumatic stress disorder) is this related?