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Briggett Harris

Anxiety Symptoms in Adolescents: Early Signs to Watch For

Adolescence is a critical period of emotional and psychological development. While occasional worry is normal for teens, persistent and intense anxiety can disrupt their daily lives. Recognizing the early signs of anxiety in adolescents is crucial to providing timely support and intervention. In this blog, we'll explore the common anxiety symptoms that parents, teachers, and caregivers should watch for, helping ensure young people receive the care they need.


1. Excessive Worry and Fear

One of the hallmark signs of anxiety in adolescents is excessive and uncontrollable worry. While it's natural for teens to experience stress related to academics, relationships, or future plans, anxiety becomes a concern when the worry is disproportionate to the situation. A teen with anxiety may spend significant time overthinking worst-case scenarios, even when there’s little evidence to support their fears. They may express a constant sense of dread or nervousness about everyday situations, such as going to school, participating in activities, or interacting with peers.

Excessive worry can also manifest in fears that are specific to certain events or objects, such as social situations, tests, or even personal safety. These irrational fears may cause avoidance behaviors, leading to missed opportunities for personal growth and development.


2. Restlessness and Irritability

Teens with anxiety often appear restless or easily agitated. Anxiety can make it difficult for them to relax, causing fidgeting, pacing, or the inability to sit still for long periods. This restlessness may also affect their focus, making it hard to concentrate on schoolwork or hobbies they used to enjoy.

Irritability is another common sign of anxiety. Adolescents may become easily irritable in situations that wouldn’t typically upset them. The combination of restlessness and irritability often leaves adolescents feeling on edge, which can strain relationships with family, friends, and teachers.


3. Avoidance of Activities

Avoidance behavior is another significant indicator of anxiety. Adolescents may avoid school, social events, or any situation that triggers anxiety. For example, a teen might fake illness to skip school or decline social invitations due to fear of embarrassment. Avoidance not only reinforces anxiety but also limits opportunities for personal growth and social development.

It’s important to pay attention when teens consistently avoid activities they used to enjoy. Avoidance can also take the form of procrastination, where teens delay schoolwork or other responsibilities because they feel overwhelmed by the thought of starting.


4. Physical Symptoms

Anxiety doesn’t just affect the mind—it also triggers physical symptoms. Many adolescents experience headaches, stomachaches, muscle tension, or unexplained pain when they are anxious. These symptoms often appear without a clear medical cause, leading some teens to visit the school nurse frequently or complain about feeling unwell.

Other physical signs of anxiety include sweating, trembling, dizziness, or shortness of breath. These symptoms may occur during panic attacks, which are intense bouts of fear that often come on suddenly. Adolescents who experience panic attacks might avoid certain situations in an attempt to prevent future episodes, which can further isolate them.


5. Difficulty Sleeping

Anxiety often interferes with sleep. Teens may struggle to fall asleep or stay asleep due to racing thoughts, excessive worrying, or a heightened sense of alertness. Insomnia is common in adolescents with anxiety, and they may wake up feeling tired despite spending enough time in bed.

Sleep problems can exacerbate other anxiety symptoms, as lack of rest contributes to irritability, difficulty concentrating, and an overall sense of being unwell. Addressing sleep disturbances early can have a positive impact on managing anxiety.


6. Declining Academic Performance

Anxiety can make it hard for teens to focus in school, leading to a noticeable drop in academic performance. They may have difficulty concentrating on assignments, studying for tests, or completing homework on time. Some teens might also avoid school altogether due to anxiety-related fears, such as fear of failure, social anxiety, or test anxiety.

If a teen who once excelled in school begins to show a lack of interest or effort, this could be a sign that anxiety is affecting their ability to manage their responsibilities.


7. Social Withdrawal

Social anxiety often causes teens to withdraw from their friends and family. They may avoid social gatherings, isolate themselves in their rooms, or become less communicative. Fear of judgment, embarrassment, or rejection often leads anxious teens to distance themselves from others, even though they may desire connection and belonging.

Parents and caregivers should take note when a normally social or engaged teen begins to withdraw, as this could indicate underlying anxiety.


8. Perfectionism and Fear of Failure

Many adolescents with anxiety display perfectionistic tendencies. They may place unrealistic expectations on themselves, fearing that anything less than perfect is a failure. This pressure can create intense anxiety about academic performance, extracurricular activities, or even personal appearance.

Perfectionism can drive teens to overwork themselves or, conversely, avoid tasks altogether out of fear of not meeting their own high standards. They may be overly critical of themselves and have a hard time accepting mistakes or setbacks, which only reinforces their anxiety.


9. Excessive Reassurance-Seeking

Teens with anxiety may seek constant reassurance from parents, teachers, or friends that everything will be okay. While it’s normal for adolescents to look to trusted adults for guidance, excessive reassurance-seeking is a red flag. An anxious teen may ask the same question repeatedly, even when they’ve already received an answer, in an attempt to quell their anxiety. Over time, this behavior can strain relationships and prevent teens from developing the confidence to handle situations on their own.


10. Substance Use or Other Risky Behaviors

In some cases, teens may turn to unhealthy coping mechanisms to manage their anxiety. This can include substance use, such as alcohol or drugs, or engaging in risky behaviors as a way to escape or numb their emotions. While not all anxious teens will engage in these behaviors, it’s important to recognize the connection between anxiety and substance use or risky behavior.

If a teen suddenly begins experimenting with substances or shows an increased interest in dangerous activities, anxiety may be a contributing factor.





Anxiety in adolescents is more than just occasional worry—it can significantly impact their mental, emotional, and physical health. By recognizing the early signs, parents, teachers, and caregivers can provide the support and resources necessary to help teens manage their anxiety before it becomes overwhelming. Early intervention, whether through therapy, lifestyle changes, or school support, can make a difference helping adolescents navigate this challenging period and build healthy coping strategies for the future.


If you notice persistent anxiety symptoms in your teen, consider reaching out to a mental health professional to discuss treatment options. I have a free tool that will help. If anxiety, depression, or trauma affects your daily life it's time to break free and regain control. Our FREE 3-in-1 Bundle is designed to work together to help you identify, manage, and transform your emotions for long-term well-being. Download by clicking here Unlock Your Emotional Freedom - FREE 3-Bundle Toolkit


Briggett Harris, LMHC

Approaching Change LLC

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