Half of my addiction was the obsession to use. I didn't have to use every day, but when I wasn't using, I was thinking about it. Where to go, how much it would cost or who I could go see, what it was going to feel like and how I was going to CMA...
You only think you will never get caught - because that's what you want to believe. Eventually, we all make mistakes, either under the influence, or under the obsession. There are consequences, they just might not have happened to you, yet.

If you think you might have a problem, then you probably have a problem. I don't know anyone who DOESN'T have a problem who worries about such things. Get some help, be honest with your doctors. Try going without for a year. Find friends who don't have any pills for you to take. Get into therapy and try being gut-wrenchingly honest with your T.

Just because your use hasn't done bad things yet doesn't mean that there aren't bad things that could happen.