I do this every year:
...feeling sluggish as soon as the weather changes-and gets below 50 degrees. I am not doing well in the exercise department. When it's warm outside-I feel like I come alive. I can hardly wait to get out and walk...long, luxurious walks. Yes, you heard a longing in my voice.
I have a gym membership (waste of $$ for me), lots of exercise videos, etc. And we have an elliptical. I know what I need to do. If I wait to be motivated before I get it moving... it won't happen: work first-then the motivation comes. I know this.
Just an FYI, I'm writing this as I lay in bed-covered in blankets.
Are you allergic to winter too?