Hi thanks for query, normally person will experience
Emotions :stress in small work, disinterest, mood swings, irritated, crying for no reason, not enjoying activities and others.
Behavior : not to socialize, prefer to be alone, low level of self confidence, feelings extreme hunger or loss of appetite, and others.
Normally anxiety is unknown fear, the person may not be sure of reason for fear.. Feel anxious to work on anything he /she is fear of..
Both are vast it can't be explained here, depending on the case it will be analyzed and suggested.
This depends on person to person. But don't analyze your self, if you feel any one is applicable. Please take experts help.
Health Tips
Some times if there is emotional outbursts don't considered as depression, chanting Omkara and few of change in life style will help to handle yourself better and cope with the situation.