Hey bhd812 I know how you feel, I have had seasonal affective disorder aka SAD ( haha ) for about 8-9 years now, I`m sorry but I have`t read through the entire post (dont have time).
If not mentioned already you should try one of those lightboxes that they sell now adays and use it for like 1 hour in the fall\winter.
I have one and even though I still notice it there is an improvement.
My life have probalby been a little "different" then alot of other people my age since I also (probably) have social anciety.
The way I feel it is that it is of course not only the fact that I get to tired in the winter and have to sleep more then usually but the SAD is a trigger to alot of other issues, issues that come up in your mind when your alone thinking.
I think it is great that you`re going to a psy...I have to0 for about a 1 1\2 year and it helped me alot, and the people around you probably notice if\how\when you change for the better...I feel it is hard to notice on myself at least.
I have to go now, but pm anyway if there is something.....
(sorry for the quick messy post
)