Here are common examples of anxiety disorders: 
1. Generalized Anxiety Disorder (GAD) What it is: People with GAD experience chronic, exaggerated worry about everyday things, such as health, money, family, work, or chores, even when there is little or no reason to expect a negative outcome.
Key features: Difficulty controlling the worry, physical symptoms like muscle tension, fatigue, restlessness, and irritability, lasting for months. 

2. Panic Disorder
What it is: Characterized by sudden, unexpected attacks of intense fear or terror that reach a peak within minutes (panic attacks).
Key features: Pounding heart, sweating, shaking, shortness of breath, chest pain and a terrifying feeling of losing control or impending doom. People with panic disorder often live in persistent fear of having another attack. A common issue experienced by retired veterans.

3. Social Anxiety Disorder (Social Phobia)
What it is: An intense, persistent fear of being watched, judged or humiliated in social situations.
Key features: Fear of public speaking, meeting new people, or eating/drinking in public. This anxiety often leads to avoiding social situations entirely, which can severely impact school, work and personal relationships. 

4. Specific Phobias
What it is: An excessive and irrational fear of a specific object, animal, activity, or situation that poses little actual danger.
Common examples:
Acrophobia: Fear of heights
Claustrophobia: Fear of enclosed spaces
Arachnophobia: Fear of spiders
Trypanophobia: Fear of medical needles or injections
Key features: Immediate, intense anxiety triggered by the trigger, leading the person to go to great lengths to avoid it.

5. Agoraphobia
What it is: A fear of being in situations where escape might be difficult or help might not be available if things go wrong.
Key features: Fear of using public transportation, being in open spaces (like parking lots), being in enclosed spaces (like stores), standing in line, or being outside the home alone. In severe cases, the person may become completely housebound. 

6. Separation Anxiety Disorder
What it is: While often diagnosed in children, adults can also have it. It involves excessive anxiety and fear about being separated from people to whom the person has a strong emotional attachment (such as a parent, partner, or child).
Key features: Worry that harm will befall the loved one while separated, reluctance to leave home and nightmares about separation.
Related Conditions

While no longer officially classified strictly under “Anxiety Disorders” in the DSM-5, the following conditions are reportedly closely related and share core features of anxiety. Obsessive Compulsive Disorder (OCD): Characterized by unwanted, intrusive thoughts (obsessions) and repetitive behaviors or mental acts (compulsions) performed to reduce the anxiety caused by the obsessions. Post Traumatic Stress Disorder (PTSD): Triggered by experiencing or witnessing a terrifying traumatic event, leading to flashbacks. Veterans often experience severe anxiety, and uncontrollable thoughts about events.