IDTMACS - no-one on this thread will judge you. I don't think any of us has the right. We're all on here because of our concerns about what we're drinking, so you are with friends.
What started it for me? I've always enjoyed drinking. I started drinking very (too) young, at around 14. My parents always enjoyed a drink - although not especially heavy drinkers, alcohol was very much part of their lives. I remember coming home from school (they were both teachers at my school) and we would sit down and all chat about the day. I would drink coffee and my parents would drink sherry or wine, so I suppose that's where the link between work/end of the day and alcohol was established in my mind.
My teen years and friends were spent going out to parties and the pub and eating out - my social circle were all around 4/5 years older than me.
Then university, where drinking/partying was the norm.
Then I started work in advertising, where heavy drinking/client lunches were really the norm, in the mid 80s. Interestingly it changed pretty quickly around '84/85 - whereas once it was a faux pas not to order wine at lunch, suddenly it was a big, big faux pas so to do - and bottled water became the norm. Thank goodness for that, otherwise I would definitely have more of a problem now than I do!
So although lunchtime drinking stopped around then (and I still rarely do it - only if I'm out with a client for a particularly special/important lunch, or if it's Christmas), evening drinking continued.
DH and I when we first met, were usually out every night. When the children came along, wine was our way of enjoying being 'stuck' at home, not able to go out.
Initially it was one bottle, then a g+t each, followed by a bottle, then 2 bottles - gradually over the years it has crept up, so that 2 bottles per evening (more at the weekend) seems normal. Yet I know, from listening to other people, that this is definitely not normal - but I think that also my social circle seem to share the same view on alcohol as we do, which does make it harder to pull back and stop/cut down.
When I told my DH I was stopping - just for the month - his first reaction was about him - i.e. I would make his life boring - which I thought was very telling.
I have surprised myself by how easy it has been to stop - although the fact that I'm aware I'm counting the days is indicative of how much a part of my life it has become. But I have no desire to go back to drinking so much.
I think it's brilliant that you have made an appointment with your GP - I don't think I'm that brave yet! - but I have no idea what he/she will suggest. I would think that the first thing, if you can't just stop, is to at least cut down. Have you tried this yet? If you're drinking wine with sparkling water, can you reduce the amount of wine/increase the amount of sparkling water per drink, so it's weaker and weaker?
Good luck and please let us know how you get on - if you're on this thread you're part of 'us'! (I know it's Cistus's thread, but I'm sure she will agree!)