Contrary to popular belief, one cannot develop an addiction to narcotics in the presence of acute pain. It is more important to keep the pain under control, since pain inhibits healing:

"Pain has a protective function in nature, warning of damage, and promoting careful treatment of the affected area. However, postoperative pain can be destructive too: by heightening the cellular stress response, the autonomic, somatic and endocrine reflexes are diminished, resulting in protein breakdown, platelet aggregation, nausea, ileus and a suppressed immune system. Low oxygen tension and poor perfusion can slow down the deposition of collagen in tissue undergoing repair, both of which can be influenced by pain: restricted breathing due to pain can lead to low-grade hypoxia, and severe pain can cause vasoconstriction, both of which ultimately impair wound healing."

You're a nurse, Acadia. This is not new information to you. As the pain you experienced in hospital is affecting you now (it has affected your post-operative course), it is more important to keep it under control so you can get back to normal activities as quickly as possible and to promote healing than to be concerned about the potential of drug addiction.

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Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks