BD -- When it comes to your pain and effective treatment that will help you more than hurt, that is the realm of your doctor. When it comes to the other aspects of your current relationship to the painkillers, well... you may be addicted to opiates. In the end, only you can know that. There are some clues, such as going to the doctor not about pain per se, but with the focus on getting a stronger drug that without his prescription you've already tried. You also said "of course" he wouldn't give it to me. Think about why you already knew that.
If you think you do have a problem but aren't sure, this may help:
http://bit.ly/33yaNo
Chris