How to Know If You Have Depression: Signs, Symptoms, Treatment & When to Get Help

Do you feel persistently low, emotionally heavy, or exhausted no matter how much you rest? Have you lost interest in work, hobbies, or people you used to care about?

Depression can look different from person to person. 

Some people continue going to work, studying, and managing daily responsibilities while quietly struggling with low mood, fatigue, poor concentration, or a sense that nothing feels enjoyable anymore.

If you have been wondering, “Do I have depression, or am I just sad, stressed, or burned out?” this article can help you understand the signs and when professional support may be needed.

This article will help you understand:

• How to know if you have depression
• The core signs and symptoms of depression
• When to seek professional help for depression
• What treatment options are available for depression
• How antidepressants, psychotherapy, and rTMS may help
   

How Do You Know If You Have Depression?

Many people experience sadness, stress, or emotional exhaustion from time to time. Depression is different because symptoms tend to persist, affect several areas of life, and make it harder to function as usual.

What Are the Two Core Signs of Depression?

The two core signs of depression are:
 

• Persistent low mood: feeling sad, empty, hopeless, or emotionally heavy for much of the day.
   
• Loss of interest or pleasure: losing motivation or enjoyment in activities you previously cared about.

These symptoms may not always feel dramatic. Sometimes depression feels more like numbness, fatigue, or the sense that life has become difficult to engage with.

What Other Depression Symptoms Can Occur?

Other common symptoms of depression may include:
 

• Changes in appetite, such as eating much less or much more than usual, sometimes with noticeable weight changes
   
• Feeling tired most of the time or having very little energy
   
• Difficulty concentrating, staying focused at work, or studying
   
• Memory problems or frequently forgetting things
   
• Sleep changes, including insomnia, waking too early, or sleeping much more than usual
   
• Feeling slowed down, restless, guilty, worthless, or unable to make decisions
   
• Thoughts of self-harm, death, or ending your life

Depression cannot be diagnosed through an online quiz or self-assessment alone. 

However, if these symptoms have lasted for more than two weeks and are affecting your work, relationships, sleep, or daily functioning, it is important to seek an evaluation from a psychiatrist or other qualified mental health professional.

If you are having thoughts of harming yourself or feel unable to stay safe, contact local emergency services or a crisis support service immediately.

What Treatment Options Are Available for Depression?

Depression is treatable. Depending on your symptoms, history, preferences, and clinical assessment, treatment may include medication, psychotherapy, non-invasive brain stimulation, or a combination of these approaches.

How Do Antidepressants Work?

Depression involves changes in several brain signaling systems, including serotonin, dopamine, and norepinephrine. Antidepressant medications work on these systems and may help improve mood, motivation, sleep, anxiety, and concentration for some people.
 

Medication does not work in exactly the same way for everyone. The most appropriate type, dose, and treatment plan should be discussed with a psychiatrist, who can consider your symptoms, medical history, possible side effects, and treatment goals.

Talk to a psychiatrist about your situation

What Types of Therapy Can Help Treat Depression?

Depression mostly involves a combination of physiological and psychological factors and is difficult to improve through willpower alone—professional help is needed.

Counseling, what most people understand as psychotherapy, is one effective approach.

Treatment methods come in many forms:

One method involves talking with a professional who knows how to listen. They'll guide you to see thoughts that repeatedly make you sad and teach you how to face difficulties from different perspectives. This method is called Cognitive Behavioral Therapy (CBT).
 

Another method helps you better coexist with your emotions. Even when you still feel sad or anxious, you'll learn to catch yourself first rather than being led by emotions. This approach often uses meditation and breathing exercises, called Mindfulness-Based Therapy. Research has found this can help reduce repetitive rumination and significantly lower relapse rates [1].

There's also a deeper approach that involves looking back at past experiences—perhaps how childhood, family, or old wounds have influenced your current emotional responses. This is called Psychodynamic Therapy or Psychoanalysis.

What these methods have in common is: helping you better know yourself, learning to care for your own mind, and gradually emerging from low periods in a safe environment. Everyone's situation differs, so suitable treatment methods vary—professional evaluation and recommendations are usually needed.

What Is rTMS for Depression?

Repetitive Transcranial Magnetic Stimulation, or rTMS, is a non-invasive treatment that uses magnetic pulses to stimulate targeted areas of the brain involved in mood regulation.
 

rTMS may be considered for some people with depression, particularly when symptoms have not improved enough with other treatments. Treatment is usually delivered over a planned series of sessions and may be used alongside medication or psychotherapy, depending on an individual’s needs.
 

According to internal statistics from Chen Chi Medical, after completing 24 rTMS sessions, about half of patients showed a significant treatment response. Average depression and anxiety scores decreased, and about 30% achieved symptom remission [2].

Further reading: What Is rTMS? Treatment, Side Effects, Costs, and Getting rTMS in Taiwan

Conclusion

Depression is a real health condition that can affect both the mind and body. Seeking help early can create more opportunities to regain stability in your mood, daily life, work, and relationships.
 

A psychiatrist can help assess your situation and discuss whether medication, psychotherapy, rTMS, or a combination of treatments may be appropriate for you.
 

If you would like professional guidance about depression-related concerns, FundaTalk connects you with psychiatrists and psychologists who provide support in Chinese or English. Psychiatric evaluations are available in both languages, and psychologists can provide counseling in the language that feels most comfortable to you.
 

FundaTalk was created and is operated by Blossom Medical, a mental health clinic based in Taipei, Taiwan. With appropriate support and treatment, it is possible to gradually move through depression and rebuild a more balanced life.

Author: Dr. Hung Chin Lun

Treatment Areas:

Depression, bipolar disorder, post-traumatic stress disorder, anorexia, bulimia, binge-eating disorder, and addiction disorders.

Learn about online mental health consultation with Dr. Hung Chin Lun
 

References

1. Van der Velden, A. M., Kuyken, W., Wattar, U., Crane, C., Pallesen, K. J., Dahlgaard, J., Fjorback, L. O., & Piet, J. (2015). A systematic review of mechanisms of change in mindfulness-based cognitive therapy in the treatment of recurrent major depressive disorder. Clinical Psychology Review, 37, 26–39. https://doi.org/10.1016/j.cpr.2015.02.001
2. Hong, J. L. (January 23, 2025). Numbers Tell the Story: Complete Analysis of 448 rTMS Cases at Chen Chi Woburn. Chen Chi Psychosomatic Clinic.