New poster here
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I am a 40-something female that drinks about the same amount as the OP (2-3 glasses of wine each night.) I'm fairly small in size (5 foot 3, size 2.) The heavy drinking has mostly started within the last year or so.
Although I feel like I still "function" fine (I've never bailed on a responsibility due to drinking), I have definitely seen effects. 2 years ago I ran half marathons in sub 1hr 50 minutes, now it takes me about ten minutes longer.