Depression is more than just feeling really, really, really sad. Depression is also something that can come and go in your lifetime depending on certain human needs not being met. Think of depression as a cluster of symptoms affecting you all at once. Symptoms such as: fatigue, crying spells, lack of motivation, feelings of worthlessness or hopelessness, and low self-esteem to name a few. If you’ve been experiencing this for more than 6 months, it may be time to seek some type of treatment.