Hi and welcome!
I've been on and off sobriety for almost three years now. Longest was 15 months and this time I'm on day 26. To tell or not to tell is your very own personal decision. I have no problem telling people if asked; however when I first came out of rehab I was almost too open too happy to tell people of what I saw as such an achievement until I realized not everybody saw it that way. My HB didn't want his family to know (all of a sudden I felt ashamed and also very hurt). My boss didn't want anybody to know because of my position (it could hurt the respect). So I had to way up what was right for me and I still stand by that when asked I will tell the truth if I want to or just say 'no thanks'. I think we read too much into what people think if you refuse to drink. I'm just not that important and that's actually a good thing. You will learn to deal with your feelings about this and make a decision that is right for you.