Pressuring

So yesterday was my first day of work and I fainted but got up and kept working not wanting to be a failure. So when I got home I was non stop crying from all the pain I pushed myself through. So I told my mother I don't want to go back because I still don't feel good and she's making me go because she says I need to pay the bills. She says to go and show them I can do better but I'm still in pain and all she wants is money or she said don't ask her for help. They want me to take pain pills with out contacting the doctor I just don't want to go back and my mother and sister don't seem to get it