Taking Roxicodone m30 for chronic pain question...

Hello to all. I recently got a MRI scan and found out I have a herniated disc and I have lower back pain every so often and it bothers me alot. Its been like this for 3 months but just worsens every week slowly. I try not to wine, but now I have to. I live in florida and I heard it is easy to get prescribed Roxycodone. I been taking one m30 at night before sleep to ease the pain which I recieved from a family member and wondering if that is even illegal or if I tell them this what I been taking would they say something bad? I am going to see a Pain Management Dr. soon. I been taking a (nsaid) Meloxicam that does not work at all which I received from my neurologist. Would I get prescribed this if I tell this is what works for me? I know its a narcotic but this is all I know that works for my chronic back pain and I can sleep well at night.