depression

Changes in mood either appears to be in depressed mood most of the time day after day or says so could be moody tearful irritable or talk about feeling sad or empty. 

Lack of pleasure doesn't enjoy anything does not feel anything has no interest in anything, does not feel anything no interest in anything seems consistent for the most of the day. 

Changes in Eating Patterns either eating a lot more or eating a lot less day after day or gaining or losing a significant amount of weight without being on a diet.

Changes in Sleeping patterns either having trouble sleeping day after day or sleeping much more than usual day after day. 

Changes in Activities very slow at reacting to what people say and at getting moving or following through in any physical activity. 

Lack of Energy excessive tiredness fatigue and lack of energy to do things one normally could do after day.

Changes in Perception of self a new and persistent sense of guilt of worthless of inadequacy nearly every day about oneself in general not about depression it self

Changes in focus such as lack of confidence forgetful inability to think inability to make decisions occuring nearly every day. 

Lack of focus thoughts of hopeless death suicide either with a plan or without one or a attempt of suicide.