Depression varies from person to person, but there are some common signs and symptoms. It’s important to remember that these symptoms can be part of life’s normal lows. But the more symptoms you have, the stronger they are, and the longer they’ve lasted—the more likely it is that you’re dealing with depression.

10 common symptoms of depression:

1. Feelings of helplessness and hopelessness. A bleak outlook—nothing will ever get better and there’s nothing you can do to improve your situation.
2. Loss of interest in daily activities. You don’t care anymore about former hobbies, pastimes, social activities, or sex. You’ve lost your ability to feel joy and pleasure.
3. Appetite or weight changes. Significant weight loss or weight gain—a change of more than 5% of body weight in a month.
4. Sleep changes. Either insomnia, especially waking in the early hours of the morning, or oversleeping.
5. Anger or irritability. Feeling agitated, restless, or even violent. Your tolerance level is low, your temper short, and everything and everyone gets on your nerves.
6. Loss of energy. Feeling fatigued, sluggish, and physically drained. Your whole body may feel heavy, and even small tasks are exhausting or take longer to complete.
7. Self-loathing. Strong feelings of worthlessness or guilt. You harshly criticize yourself for perceived faults and mistakes.
8. Reckless behavior. You engage in escapist behavior such as substance abuse, compulsive gambling, reckless driving, or dangerous sports.
9. Concentration problems. Trouble focusing, making decisions, or remembering things.
10. Unexplained aches and pains. An increase in physical complaints such as headaches, back pain, aching muscles, and stomach pain.

Depression is a major risk factor for suicide. The deep despair and hopelessness that goes along with depression can make suicide feel like the only way to escape the pain. If you have a loved one with depression, take any suicidal talk or behavior seriously and watch for the warning signs:

1. Talking about killing or harming one’s self
2. Expressing strong feelings of hopelessness or being trapped
3. An unusual preoccupation with death or dying
4. Acting recklessly, as if they have a death wish (e.g. speeding through red lights)
5. Calling or visiting people to say goodbye
6. Getting affairs in order (giving away prized possessions, tying up loose ends)
7. Saying things like “Everyone would be better off without me” or “I want out”
8. A sudden switch from being extremely depressed to acting calm and happy

If you think a friend or family member is considering suicide, express your concern and seek help immediately.

Talking openly about suicidal thoughts and feelings can save a life.

https://www.helpguide.org/articles/depression/depression-symptoms-and-warning-signs.htm