Alcohol, exercise and SAD

Hi Guys,
Whilst I have never been officially diagnosed with SAD I am 95% sure I do suffer from it, and certain triggers can make it 10 times worse.
I have now woken up to the fact that drinking a lot of Alcohol this time of year wakes up my SAD. I used to drink (binge) a lot - infact silly amounts in the past. Back in autumn 2002 it hit me like a brick wall, I thought I had a breakdown of severe anxiety during a nasty hangover, but it turns out now to be what I think was SAD fuelled by a massive night out (and the hangover fear combined). I recall the weeks leading up to this, at the weekend I would drink alot and get panic attacks the next day, only to subside. Foolishly I carried on and I recall that morning after so well. It was fear like I never had before. I had to go to the doctors and they diagnosed GAD - but I think it was my SAD condition triggered by booze and alcohol abuse depression . I went on a course of SSRI's and came off them the following august. I am sure I felt a lot better in spring.
I quickly "forgot" about my SAD in the following years, not sure why it didn't come back like a brick wall in the following years, but I recall a few winters feeling anxious on quite a lot of days.
But it made a comeback last Sep/Oct after another reasonable session, and moving to a very dark flat. Coping wasn't easy, and it’s scary not knowing what it is! Thinking about it, I have mostly always been anxious October onwards, very rarely summer if ever.
I always remember being 11 years old starting a new school in Oct, and when it rained (very dark and cloudy) I remember having a horrible panic attack and depression at such a young age. My mum would say what’s wrong? And I would say I hate cloudy days! I suspect that why even now I am extremely interested in weather!
It disappeared I think during the following years to return with a vengeance in 2002 - many years later - after a huge session.
It seems now alcohol brings out SAD (or makes it 50 times worse) and bad anxiety, so I plan NOT to get hungover! Only have a few beers now and again. I have cut out the booze massively (last time I was really drunk was this time last year) and exercising big time (cycling) - I never exercised much (almost nothing) prior to this summer. Also my Lumie on, this year so far has been good. With the exception of one or two moments. I do get anxious at work in meetings etc, but now and again I take propanol when needed.

Thanks.