Help im miserable.

This is my 4th child and I have never felt this horrible. I'm tired 24/7, back pain, pressure in my pelvic and butt, headachs and feel like ima get sick. I'm 36 weeks almost 37. My dr really ain't doing anything. I haven't been checked to see if I'm dilating, I been to the hospital twice for having contractions. Idk what to do. I feel so bad my husband works night and when he gets home im bitchy and I wanna sleep. My husband can tell I'm miserable and he don't know what to do so he Cry's. Help what's wrong.