Do I need to get an attorney if no one in the HR answers my calls regarding my injury at work?

I am a CNA. I do a lot of lifting and turning and pulling. I ran across a lady in the floor one night at work. I told the LPN. Another CNA got a chair, one LPN held her feet so they wouldn’t slide and the other LPN on the hall that night got under one arm while I was under the other arm lifting her off the floor. When I stood straight up my back felt like it locked. The LPN over me told me to try and stick it out until the end of the shift (because we were understaffed that night) and try to go home and just rest instead of filling out an accident form (because it looks bad for you to get hurt at work in our employers eyes). At the end of shift I was in tears. I filled out the report and was told to slide it under HR's door and they will make me an appointment and get in touch with me. I waited for 8 hours and called to find out what I needed to do for pain. The HR lady informed me she saw the papers under her door but didn’t read them. I explained what happened and told her I was hurting and needed to see the doctor. She replied by asking if I got hurt and if I was in pain and if I needed to see the doctor. It’s like she wasn’t listening. I was scheduled an appointment 2 days later. I was not drug tested, was put on light duty, and was given Motrin. It’s been 2 weeks and I’m still hurting. I can’t even sleep in my bed. I’m hurting so bad. I called HR to see if I needed to go back to the doctor and to find out how long I will be on light duty but can’t get anyone to answer my calls or call me back. What do I do? I don’t have the money to go to the doctor myself.