Types of Mood Disorders and Their Symptoms Explained

at Lyte Psychiatry (Best Adults and Adolescents Therapist and Psychiatrist Near You — Affordable Therapist and Psychiatrist Near You | Dallas & Arlington, TX)

Not Just “Feeling Off”: When Emotions Disrupt Everyday Life

Everyone experiences emotional highs and lows. But when mood changes become persistent, extreme, or interfere with daily functioning, they may be a sign of a mood disorder—a category of mental health conditions that affect how a person feels, thinks, and relates to the world.

At Lyte Psychiatry, we help adults, teens, and families in Dallas & Arlington, TX identify and manage mood disorders through expert evaluation and personalized care. You don’t have to guess what’s going on—you deserve real answers and relief.

What Is a Mood Disorder?

A mood disorder is a mental health condition that primarily affects a person’s emotional state. It can cause prolonged sadness, extreme mood shifts, irritability, or a sense of emotional numbness. These conditions are medical, not personal failings—and they’re more common than many people realize.

🧠 According to the National Institute of Mental Health, mood disorders affect nearly 1 in 5 adults in the U.S. each year.

Common Types of Mood Disorders

Here’s a breakdown of the most frequently diagnosed mood disorders—and what their symptoms might look like.

1. Major Depressive Disorder (MDD)

Also called clinical depression, this condition causes:

🔷 Persistent sadness or hopelessness

🔷 Loss of interest in activities once enjoyed

🔷 Sleep disturbances (too much or too little)

🔷 Appetite changes or weight fluctuations

🔷 Difficulty concentrating or making decisions

🔷 Fatigue or low energy

🔷 Thoughts of self-harm or suicide

🧠 It’s more than feeling sad—it’s a deep, ongoing struggle that affects how someone lives day to day.

2. Bipolar Disorder

Bipolar disorder includes intense mood swings between emotional highs (mania or hypomania) and lows (depression).

Symptoms during a manic phase:

✅ Excessive energy or euphoria

✅ Decreased need for sleep

✅ Racing thoughts or rapid speech

✅ Risky or impulsive behavior

Symptoms during a depressive phase:

✅ Low energy and motivation

✅ Hopelessness or guilt

✅ Withdrawal from others

✅ Suicidal ideation

🧠 There are different types of bipolar disorder—Bipolar I, Bipolar II, and Cyclothymic Disorder—each with unique patterns.

3. Persistent Depressive Disorder (Dysthymia)

This is a chronic form of depression lasting two years or more. Symptoms are milder than major depression but longer lasting:

🔷 Low self-esteem

🔷 Chronic fatigue

🔷 Feeling “down” most of the time

🔷 Poor concentration

🔷 Sense of hopelessness

🧠 It often goes unnoticed because people may function day-to-day—but feel empty or emotionally numb inside.

4. Premenstrual Dysphoric Disorder (PMDD)

A severe form of PMS that affects mood, typically in the week or two before menstruation:

✅ Severe irritability or anger

✅ Depressed mood or anxiety

✅ Mood swings and crying spells

✅ Physical symptoms like bloating or fatigue

🧠 PMDD can be debilitating and is often confused with general PMS—professional care can make a big difference.

5. Mood Disorder Due to a Medical Condition or Substance Use

Sometimes mood disorders are triggered by:

🔷 Chronic illnesses (like thyroid disorders or neurological conditions)

🔷 Certain medications

🔷 Substance abuse or withdrawal

🧠 A thorough psychiatric evaluation is essential to distinguish between primary and secondary causes of mood disruption.

You’re Not “Too Sensitive.” You Might Just Need Support- Schedule an Appointment at Lyte Psychiatry (Affordable Therapist and Psychiatrist Near You)

Mood disorders are not character flaws—they’re treatable mental health conditions. The sooner you understand what’s going on, the sooner you can feel like yourself again.

If your mood is interfering with your work, relationships, or peace of mind, it’s time to talk to someone who gets it.

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Call us if you have questions at 469-733-0848

Frequently Asked Questions:

Q: How do I know if it’s a mood disorder or just stress?

A: Mood disorders are persistent and interfere with your ability to function or enjoy life. If stress doesn’t ease with rest or time, it’s worth getting evaluated.

Q: Can teens have mood disorders?

A: Absolutely. Teens are especially vulnerable to mood instability, and early intervention can prevent long-term impact.

Q: Is medication always necessary?

A: Not always. Some people respond well to therapy alone. At Lyte Psychiatry, we explain all your options and tailor your plan to your needs.

Q: What if I’ve already tried therapy or medication without success?

A: We hear this often. Sometimes, the issue is the wrong diagnosis or approach. A new evaluation can lead to a more effective treatment plan.