You are almost surely physically dependent, meaning that you will experience withdrawal if you stop them abruptly. They also probably have little effect anymore; if you were to stop them, go through withdrawal, and restart them, you would likely get much more pain relief from them. But at this point, if you can keep a constant dose and are fairly functional, you are fine. Addiction is not a 'moral' issue, but a disease; unfortunately if you even raise the issue in your field you will be sent away for a 4 day 'evaluation', and because you would be in withdrawal, they would likely say you are addicted! IF you keep using despite negative consequences, THAT would suggest more of an addictive relationship with the medication.
If you're taking it for pain and aren't craving the drug, chances are no. If your pain is gone or lessened and you continue taking it or taking more and more to get a good feeling or for compulsion, perhaps. Only you know though.