I wondered about this myself. Every year in the fall I get so extremely sore. I get spasms threw out my body that are very painful. With me it's always with the slightest temperature change. Though as mentioned above I have thought of getting a seasonal depression lamp. Best of wishes to you.
I know just what you are feeling. I am bipolar and I tend to go manic most of the time and my doctor showed me on a log going back years how within a 5 day period for years on end I had a manic episode every fall. I do know how this feels. Usually this is time for the doctor to make some sort of change or put you on a temporary med. Talk to your doctor about it. I cannot treat or diagnose you because I am not a doctor. Please call your doctor right away.
Well everyone is different when it comes to these things. Just out of curiosity have you ever tried a seasonal depression lamp? If you know your depression is seasonal and you haven't tried one it might be something to look into. I use one or I can't sleep during the winter months.