Any ex-addict parents out there?

I have been clean off of heroin for 5 years now. I had a terrible addiction, but no one who knows me now would ever guess, and the friends and family I've had since before my addiction almost forget how bad I had gotten.

Becoming a parent as an ex addict brings up unique fears. I'm terrified of my son ever going through anything even remotely like what I did. I also have no idea if I should ever tell him about my history. But more than fears, I have an overwhelming feeling of gratefulness. I had no idea years ago when I was covered in track marks in a motel 6, that I would be happily married with a beautiful baby and a healthy lifestyle. I hope anyone reading this that knows anyone with addiction or struggling themselves knows that there is always hope.