I hear so much about SAD during the fall and winter months; as that seems to be common. With me I feel off in the spring going into summer. There are a couple of reasons why it's that way for me. First, I've had some health issues happen to me in the spring, including surgery. Also it tends to be the time that I have doctor visits that I don't like that much. Spring used to be a nice time of year for me. Another reason is that I feel more exposed to people and noise that I prefer not to have around.