I feel like I'm being mistreated.

Got told I don't have to cook or clean because he does all the work anyways. Also that I sleep all day (I work 3pm-3-5am) I do mostly stock and its taken a toll on my already bad back (I fractured it and didn't heal right I was offered disability ) if I don't get up and do things for him (such as get hid clothes when he showers or bring him a drink) he gets mad. If I talk to him and he ignores me I get mad and yell "hello?" And he screams at me. Maybe I'm overreacting but this has become s daily thing now and he won't even talk to me to work it out.