Anxiety Causes, Symptoms & Treatment Explained

Table of Contents

What is Anxiety

Anxiety is a normal human emotion. Everyone feels nervous or uneasy from time to time—before an exam, during stressful situations, or when facing uncertainty. However, when anxiety becomes persistent, overwhelming, or difficult to control, it may be classified as an anxiety disorder. This can interfere with daily life, work, relationships, and overall well-being.

This article provides a medically accurate, easy-to-understand explanation of anxiety, its symptoms, causes, and evidence-based treatment approaches. It is written to support individuals seeking reliable mental health information in Bangkok or anywhere in the world.

What Is Anxiety?

Anxiety is the body’s natural response to stress. It activates the “fight-or-flight” system, preparing you to deal with danger. But when this response is triggered too often—or without a real threat—it can create constant worry, physical tension, and emotional discomfort.

Anxiety disorders occur when:

  • Anxiety is excessive

  • Anxiety lasts for weeks or months

  • Anxiety affects daily functioning

  • Physical symptoms appear without a clear medical cause

Anxiety disorders are among the most common mental health conditions and are highly treatable.

Common Symptoms of Anxiety

Symptoms of anxiety vary, but they typically include emotional, physical, and cognitive components.

Emotional Symptoms

  • Excessive worrying

  • Restlessness or feeling “on edge”

  • Irritability

  • Difficulty relaxing

  • Feeling overwhelmed easily

Physical Symptoms

  • Rapid heartbeat

  • Muscle tension

  • Sweating or trembling

  • Shortness of breath or tight chest

  • Stomach upset or nausea

  • Dizziness or feeling faint

  • Sleep disturbances

  • Persistent fatigue

Cognitive Symptoms

  • Difficulty concentrating

  • Racing thoughts

  • Fear of worst-case scenarios

  • Overthinking or overanalyzing situations

These symptoms may occur occasionally or persist throughout the day.

Types of Anxiety Disorders

There are several forms of anxiety disorders, each with unique characteristics.

Generalized Anxiety Disorder (GAD)

Chronic worrying about multiple areas of life (work, health, finances, relationships).

Panic Disorder

Recurrent panic attacks with physical symptoms like rapid heart rate, trembling, or breathlessness.

Social Anxiety Disorder

Intense fear of social situations or performance situations.

Specific Phobias

Strong fear of particular objects or environments (heights, flying, needles, etc.).

Health Anxiety

Persistent worry about having a serious illness despite medical reassurance.

Obsessive–Compulsive–Related Anxiety

Intrusive thoughts or repetitive behaviours used to reduce anxiety.

What Causes Anxiety?

Anxiety arises from a combination of biological, psychological, and external factors.

Biological Factors

  • Genetics

  • Neurochemical imbalance

  • Hormonal changes

  • Thyroid disorders

  • Vitamin deficiencies (B12, D)

  • Effects of caffeine or stimulants

Psychological Factors

  • High stress

  • Trauma or unresolved emotional experiences

  • Perfectionism or high expectations

  • Negative thinking patterns

Environmental Contributors

  • Work pressure

  • Academic expectations

  • Relationship difficulties

  • Financial worries

  • Social isolation

  • Major life transitions

Understanding the cause helps guide personalised treatment.

When Anxiety Becomes a Concern

You may consider seeking medical or psychological support if:

  • Worrying is constant or uncontrollable

  • Anxiety interferes with sleep

  • You avoid situations out of fear

  • Symptoms affect your work or studies

  • Anxiety causes physical discomfort

  • Panic attacks occur

  • You experience irritability or emotional exhaustion

  • Anxiety persists for more than several weeks

Persistent anxiety is not simply “stress” or “overthinking.” It is a condition that benefits from proper evaluation.

What Causes Anxiety

How Anxiety Is Diagnosed

Diagnosis involves understanding both physical and emotional factors.

1. GP Consultation

A general practitioner helps rule out medical causes such as:

  • Thyroid dysfunction

  • Hormonal imbalance

  • Medication side effects

  • Vitamin deficiencies

This step is important because physical symptoms can closely mimic anxiety.

2. Mental Health Screening

Tools and questionnaires identify:

  • Severity of symptoms

  • Frequency

  • Emotional triggers

  • Functional impact

3. Psychiatry Evaluation

A psychiatrist can:

  • Confirm diagnosis

  • Differentiate between anxiety, panic disorder, burnout, or depression

  • Recommend treatment options

At MedConsult Clinic, many patients start with a GP consultation and, when appropriate, continue with a mental health / psychiatry consultation with Dr. Pui, along with counselling or follow-up support.

Evidence-Based Treatments for Anxiety

There are several effective treatment options depending on severity and root causes.

1. Psychological Therapy

Cognitive Behavioural Therapy (CBT) is one of the most effective treatments. It helps patients:

  • Identify thought patterns that fuel anxiety

  • Build coping skills

  • Reduce avoidance behaviours

  • Regain emotional control

Other therapy modalities such as mindfulness-based therapy, acceptance & commitment therapy (ACT), or supportive counselling may also be helpful.

2. Medication (When Recommended)

A psychiatrist may prescribe medication when:

  • Anxiety is moderate to severe

  • Therapy alone is insufficient

  • Anxiety is accompanied by depression or panic attacks

  • Symptoms affect daily life significantly

Medication is not always necessary but can be highly effective for some individuals.

3. Lifestyle Adjustments

Supportive strategies include:

  • Regular exercise

  • Consistent sleep schedule

  • Limiting caffeine and alcohol

  • Balanced nutrition

  • Practising relaxation techniques

  • Breathwork and grounding exercises

4. Addressing Medical Contributors

Treating conditions such as thyroid dysfunction, anemia, and vitamin deficiencies can reduce anxiety-like symptoms.

Anxiety vs. Stress – What’s the Difference?

Although the two feel similar, they are not the same.

Stress:

  • Triggered by external pressure

  • Usually temporary

  • Improves once the situation resolves

Anxiety:

  • Can persist without a clear reason

  • Continues even after stress is removed

  • Affects physical and emotional functioning

If symptoms remain longer than expected, an evaluation may be beneficial.

Living With Anxiety

Anxiety can be challenging, but many people manage it successfully with the right tools and support. Important points to remember:

  • Anxiety is common and treatable

  • You are not alone

  • Small improvements add up over time

  • Therapy and lifestyle changes can make a significant difference

  • Identifying triggers helps prevent episodes

  • Recovery is possible even after years of symptoms

When to Seek Help in Bangkok

If anxiety affects your daily life, relationships, emotional well-being, or physical health, speaking to a healthcare professional can provide clarity and guidance.
At MedConsult Clinic, support is offered through:

  • GP consultation

  • Mental health / psychiatry consultation with Dr. Pui

  • Counselling and structured follow-up sessions

Consultations are conducted with privacy, respect, and a patient-centred approach.

Medconsult Anxiety 3

Doctor’s Profile

Dr. Donna Robinson, our British GP and Medical Director, has over 20 years of experience providing comprehensive general and mental health care in Bangkok. She is known for her patient-centered approach and dedication to improving emotional wellbeing.

Dr. Pui, our psychiatrist, specializes in anxiety disorders, panic conditions, and mood-related issues. Her expertise in diagnosis and treatment allows patients to feel supported and understood while receiving effective, modern mental health care. Together, both doctors offer a holistic and professional approach to anxiety management.

Dr.Donna and Dr.Pui

Final Thoughts

Anxiety is a real medical condition—not a personal flaw. When understood and treated properly, most people experience significant improvement. Whether your symptoms involve constant worry, physical tension, panic episodes, or difficulty sleeping, a professional evaluation is a valuable first step.

 

Frequently Asked Questions (FAQs)

Is anxiety normal?

Yes. Anxiety is a natural response to stress. It becomes a concern when excessive, persistent, or disruptive.

Absolutely. Anxiety can cause rapid heartbeat, chest tightness, nausea, dizziness, tremors, and sleep issues.

Many people experience significant improvement with therapy, lifestyle changes, and, in some cases, medication. Long-term management is very achievable.

No. Panic disorder involves sudden panic attacks. Anxiety tends to be persistent and gradual rather than abrupt.