I get that bad too. I'm from California and when I moved to the east coast for 3 years I couldn't handle the weather health wise. All I kept thinking about was that I need the Cali sunshine BAD. I made it back to California, but like today has been gloomy all day and I've been in a funk all day. The sun just popped out and all of a sudden I'm up and moving around and happy. So yes, weather definetly affects me health wise and my mental state. I'm not sure why that is either.