Wow...glad you threw it out. Good Job!
As far as answering a drinking question...you could lie and say you're on medication. LOL Or just tell the truth and just say you don't drink anymore. I prefer the latter and would feel good saying it, too. They don't have to know the struggles you had...but if you feel its an accomplishment...say it proud and with your held high. There is no shame in remaining sober. They might think twice at ordering a second drink.