What to Do When You Feel Sad or Upset and Don't Know Why

Reasons You Might Be Depressed

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It's possible to be depressed but not know it. This isn't to say that you aren't aware that you feel bad, but you may not be aware that what you are feeling could be labeled as "depression." 

Reasons You May Not Know That You Are Depressed

  • You've been depressed for so long that it simply feels normal to you. This may be especially true for those who have been depressed since early childhood.
  • You may not be feeling particularly sad so you think it can't possibly be depression. Keep in mind that depression can take more forms than just a feeling of profound sadness. You may feel tired, low in energy or lack in any real sense of joy without necessarily feeling sadness or being weepy.
  • Depression can develop gradually over an extended period of time. When the changes in mood are subtle and come on slowly we may simply not recognize that things aren't the same as they used to be.
  • Depression can make you feel down about yourself. If you are feeling like you are somehow bad or defective it's easy to dismiss what you are feeling as somehow being an innate part of yourself that can't be fixed. You may feel that rather than suffering from a treatable illness you are irreparably broken and unworthy of feeling better.
  • Cultural differences can also make it more difficult to recognize and acknowledge depression. If those around you treat depression as something that must be borne without complaint then you may feel as if asking for help is a sign of weakness.

    So how do you know if you are depressed? If you've been experiencing several of the following symptoms for at least two weeks then it is possible that you could be suffering from depression:

    • Feelings of sadness or emptiness
    • Anger and irritability
    • Loss of interest in activities usually enjoyed
    • Sleep problems such as insomnia or sleeping too much
    • Fatigue or lack of energy
    • Changes in appetite or weight (can be either a lack of appetite accompanied by weight loss or increased appetite with weight gain)
    • Anxiety and agitation
    • Slowed thought, speech or physical movements
    • Feelings of worthlessness, hopelessness or excessive guilt
    • Problems with thinking, memory, concentration and decision making
    • Thoughts of death and suicide
    • Mysterious aches and pains with no discernible cause

    What to Do If You Feel Sad or Upset for Prolonged Periods But Don't Know Why

    If you suspect that you may have depression—or things simply don't feel quite right—it is a wise idea to speak with your personal physician about what you feeling. He can screen you for possible causes for your symptoms and get you the proper medical care that you need.

    Depression Discussion Guide

    Get our printable guide to help you ask the right questions at your next doctor's appointment.

    Mind Doc Guide

    As part of your doctor visit, you may have certain blood tests done to rule out other causes of your depression symptoms. Certain conditions—such as hypothyroidism—can create symptoms which mimic depression. Once these conditions have been ruled out your doctor can then either treat you himself with antidepressant medications or he can refer you to a psychiatrist, psychotherapist or another qualified mental health professional who specializes in treating mental health conditions.

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    Article Sources

    • "Depression (Major Depressive Disorder)." Mayo Clinic.