A subjective performance evaluation typically relates to intangible employee qualities and is based on subjective feedback from the manager as opposed to objective, measurable feedback.
In addition, according to the DSM-5 -- a manual used to diagnose mental health conditions -- you may have other symptoms with major depression. Those symptoms might include: Fatigue or loss of energy almost every day. Feelings of worthlessness or guilt almost every day.
Major or clinical depression is a serious but treatable illness. Depending on the severity of symptoms, your doctor may recommend treatment with an antidepressant medication. He or she may also suggest psychotherapy, or talk therapy, in which you address your emotional state.