What if i only have four symptoms of depression?

Depends which four: Lack of interest and fatigue most common in outpatients. Anyone with suicidal thoughts needs evaluation. And there is something called minor depression in which full criteria for depression not reached but will still respond to treatment, either therapy or medication.

Hmmm: Discuss those symptoms with your doctor. The intensity and pervasiveness of your symptoms are as important as their presence or how many you have.