How do I know if I have depression?

There are times when you say "I'm not feeling well," but you don't know if it's fatigue, stress, or something deeper. If you're wondering how do I know if I'm depressed, you're usually not looking for a label. You're trying to understand why you're having trouble functioning like you used to, why simple things seem heavy, and why everyday life has lost its color.

Depression isn't just a bad day or a period of disappointment. It's a condition that affects mood, body, thinking, and relationships. And it often doesn't show up in the way you expect. It can look like constant exhaustion, irritability, withdrawal from others, or a feeling that everything is a struggle.

How do I know if I'm depressed or just going through a difficult time?

The difference is not determined by whether you feel sad for a day or two. It is mainly determined by the duration, intensity and how much your life is affected. We all go through periods of sadness, disappointment or mental fatigue. But when the low mood persists for weeks, when you are not relieved by rest or pleasant moments and when you begin to withdraw from things that used to keep you up, then more serious attention is needed.

Many people describe themselves as “functioning mechanically.” They go to work, answer messages, and fulfill obligations, but inside they feel empty. Others don’t feel sadness so much as a constant heaviness, a difficulty getting out of bed or concentrating. This is a point that is often confusing—depression isn’t always about crying. Sometimes it’s about numbness.

The most common signs of depression

The most important thing is a persistent change from your usual self. You may notice that your mood has dropped most days, that you don't find pleasure in things that used to bring you relief, or that everything seems disproportionately difficult.

Physical signs often appear as well. Sleep may change - either sleeping too much or waking up tired and restless. Appetite may decrease or increase. Energy drops, even for no apparent reason. Some people feel that their body is heavy, as if it takes a lot of effort to do the obvious.

On the level of thought, depression often brings intense self-criticism. Thoughts such as “I don’t deserve it,” “I can’t do it,” “I’m a burden,” or “nothing changes” can become a daily occurrence. There is also difficulty concentrating, procrastination, doubt about every decision, and the feeling that even small obligations are a mountain.

In relationships, you may be drifting apart without realizing it. Not feeling like talking, canceling meetings, feeling like you have nothing to give. Some become more silent, others more irritable. Both images can be linked to depression.

When depression looks like anxiety or irritability

It doesn't always appear as pure sadness. For many adults, especially people who have learned to hold on and carry on, depression shows up as tension, anxiety, or anger. You may feel constantly stressed, get angry more easily, or have a low tolerance for everyday friction.

This is important because many people dismiss the possibility of depression by saying, “I’m not sad, I’m just nervous.” In practice, the difficulties are often intertwined. Exhaustion, frustration, and internal pressure can coexist and blur the picture.

When signs need evaluation

You don't have to wait until you're at your limit to seek help. If the above symptoms last more than two weeks, if they're affecting your work, sleep, relationships, or self-care, it's worth talking to a mental health professional.

Assessment is not a process that puts you in boxes. It is a way to clarify what exactly is going on. Sometimes it is depressive symptomatology. Other times there is intense anxiety, grief, burnout, or a combination of factors. The important thing is not to be left alone with assumptions that increase uncertainty.

In some cases, a more structured psychological assessment helps to better illuminate the overall picture. When symptoms are confusing, persistent, or impact multiple areas of life, clinical discussion and validated assessment tools can provide clarity rather than guesswork.

How do I know if I have depression, if I still work and seem "functional"?

This is perhaps the most frequently asked question. The ability to continue working or to meet basic obligations does not necessarily mean that you are well. There are people who outwardly appear perfectly functional and internally struggle daily for the basics.

So-called functionality can come at a great cost. You may get through your day, but you may collapse when you are alone. You may do what you need to do, but without joy, without breath, without a sense of meaning. If it takes excessive effort to maintain an image of “all is well,” that in itself is an important message.

Questions worth asking yourself

If you want to see the situation a little more clearly, think not only about what you feel but also about what has changed. Has your desire to see people decreased? Do you feel constantly tired, even after sleep? Do things that once had value seem meaningless to you? Do you have difficulty concentrating or making decisions? Do you feel like you have become much harder on yourself?

No single question is enough to answer. But when many of them describe you and this holds up over time, then the picture is worth professional investigation.

What doesn't help when you suspect depression

It usually doesn't help to pressure yourself with phrases like "come on, get over it" or "others have it worse." Comparison doesn't heal. On the contrary, it often increases guilt and makes you question what's already making you struggle.

It also doesn't help to expect that everything will be solved by willpower alone. Willpower is important, but when mood is seriously impaired, you also need to understand the mechanism that keeps you stuck. Depression is often maintained by a cycle of isolation, exhaustion, negative thoughts, and avoidance. This cycle is not always easy to break without support.

What can you do from today?

The first step is to take what you're experiencing seriously, without dramatizing it or minimizing it. Instead of wondering if you "have the right" to feel this way, try to look at the facts. How were you a month ago? How much has your energy, your sleep, your contact with others, your relationship with yourself changed?

It also helps to add a little observation to your daily routine. Small notes about your mood, sleep, appetite, and functioning can reveal patterns that might otherwise be missed throughout the day. This doesn't replace assessment, but it does give you a more concrete picture.

If you feel that the situation is persistent, talking to a psychologist is an essential next step. In a safe and organized setting, you can distinguish what is an occasional burden and what indicates a deeper difficulty. For some people, especially when there is confusion about what exactly is happening, a more structured assessment helps reduce uncertainty and provide a clearer direction for support.

If you live abroad and have difficulty recognizing it

For many Greeks in the diaspora, depression is easily confused with exhaustion, loneliness, or adjustment to another country . When you lack a familiar network, when the language of everyday life is not your native language, and when you have learned to “get by yourself,” you may be slow to admit that you need support.

There, even more attention to the signs is needed. If you feel that you are cut off from yourself, that everyday life is becoming increasingly flat, or that you are functioning only out of obligation, it is worth taking a serious look. The distance from home does not cancel the need for essential care.

The most helpful thing to remember is this: you don't have to be sure you have depression to seek help. You just need to recognize that something has changed and that you don't want to continue to carry it alone.