jones213 ...... There are LOTS of people who dr shopped on this forum. If it's been over six months and you've done nothing wrong since, you have no criminal record in the past, the odds of them coming after you are really slim at this point. I suppose it's possible but very unlikely at the worst.
With your background you would not be sent to prison especially considering you've gotten clean, you're not currently doing anything illegal. I would try to not stress out so much about it as the odds of anything happening now is very unlikely. I'm not saying it couldn't happen but it's really not likely at this point. Even if you were arrested and convicted a probated sentence would be the outcome unless you tried going to court with no attorney or something foolish like that. Hope that helps. God bless.