I agree that C1 didn't say "she quit because she was such an out-of-control, disgusting mess." The cat's out of the bag now. If anyone comments about your lack of imbibing, just chuckle and shrug it off and move aside.
People get used to it and after awhile really don't care. They are much more wrapped up in themselves than in your business.
This might be a blessing in disguise: now that you have a new "reputation" to uphold, you may find more public accountability in maintaining your sobriety when you're at functions. No more secret vacillations about work.