Mood swings may be sudden or strongly alter in an emotional state. A person may rapidly switch from feeling cheerful to feeling pitiful, touchy, or irate. It’s normal to have days where you feel sad. As long as your mood changes don’t interfere with your life to an extreme degree. They’re generally considered to be healthy. Mood swings are rapid and often extreme, fluctuations in one’s emotional state, involving alternating between feelings of happiness and well-being and feelings of anger, irritability, or depression. Depression can make it hard to do the things you want and need to do. During manic periods, you may be reckless and volatile.