FWIW, I don't think there's anything wrong with maintaining some privacy at work. I do think it can be destructive to keep a loved one's addiction a complete secret, but if you are reaching out for support from friends and family and Nar-Anon or Al-Anon, I can understand why you wouldn't necessarily want to also spill your guts at work. It might even be good practice at laying down boundaries. You could do it in whatever way feels comfortable, and you don't necessarily have to lie in order to set a boundary. "It's been difficult, but I'm surviving" is enough. If people push, you could tell them it's private. Just my two cents. Are you seeing a counselor or therapist? That might be a good place to work through all this more intensively and sort through your boundaries.