I didn't tell anybody either. I never felt it would be helpful to have people hovering over me about it and quite possibly judging me. Regular drinkers just don't understand. I'm about 100 days sober and I'm really glad I never talked about this with my family or friends.
Having said this, I've read here that some people find the accountability of telling people helpful. I guess that like everything else, it depends on your situation.
Delfin