Simple distinction between dependence and addiction.  Addiction is a set of
psychological behaviors that focus on obtaining a drug for non-pain purposes
focusing on analgesia here).  So if you have ever called in a script to a
pharmacy posing as office staff, if you have ever bought the drug on the
street, if you have ever taken the drug for purposes other than for pain (to
get numb, to "relax" when you aren't in pain, etc.) then you are engaging in
addictive behaviors.  If you are taking the pain medication EVERYTIME
because you are in pain or you are attempting to keep your blood levels up
to keep pain down to a minimum BUT if you suddenly stopped the med you
suffer through opiate withdrawal, aka "jonesing", then you are dependent on
the medication.  You are NOT an addict.  There are blood pressure meds,
e.g., clonidine, that you become dependent on and can have nasty rebound
hypertension if you suddenly stopped.  Are you then a clonidine addict?