S.A.D. is a type of depression that is seasonal and is usually prevalent in areas that have less sunlight during certain times of the year. Here in New England, that season is fall and winter. Many suffer and in various degrees. Your symptoms may include a change in mood: anxiety, apathy, general discontent, loneliness, loss of interest, mood swings, or sadness—other symptoms such as excessive sleep or sleep deprivation, even insomnia. Body aches, fatigue, and appetite changes with weight gain often occur. Also common are irritability, social isolation, lack of concentration, and of course, depression. S.A.D. can be self-diagnosed,, and there are many treatments for it. If you suffer from these symptoms, you can see your doctor, and he/she will probably prescribe some medication, and sometimes that medication helps. I'm writing this today because I too suffer from S.A.D. I take that back. I used to SUFFER, now I take steps to help alliviate the symptoms and in a more holistic way.