ADHD and anxiety often share similar symptoms, which can make it hard to tell them apart without a thorough assessment. Although they are different conditions, they can happen at the same time. Understanding where they overlap and how they differ can help you decide when it’s helpful to talk to a professional.
Why do ADHD and anxiety share so many symptoms?
ADHD and anxiety are different, but both can affect your attention, emotions, sleep, and how much you get done each day.
For example, both conditions may lead to:
- Difficulty concentrating
- Restlessness or feeling unable to relax
- Irritability
- Trouble completing tasks
- Sleep difficulties
- Feeling mentally overwhelmed
Because these symptoms overlap, many people wonder if they have ADHD, anxiety, or both. Looking at symptoms one by one usually does not give the full picture. Psychiatrists and psychologists will assess carefully by looking at when your symptoms started, how long they have lasted, and how they affect different parts of your life.
How are ADHD and anxiety different?
ADHD often affects attention and self-management
ADHD is a condition that usually starts in childhood, but sometimes it is not noticed until later in life.
People with ADHD may experience:
- Difficulty sustaining attention, particularly for tasks they find repetitive or uninteresting
- Frequently losing items or forgetting appointments
- Procrastinating important tasks
- Challenges with organisation and time management
- Acting impulsively or speaking before thinking
- Restlessness or difficulty remaining seated in certain situations
People with ADHD do not necessarily struggle to pay attention in every situation. Some may become intensely absorbed in activities they find particularly engaging, sometimes described as ‘hyperfocus’, while continuing to experience difficulties with routine or less stimulating tasks.
Anxiety is often driven by excessive worry
Anxiety often means living with ongoing worry or fear that can be hard to manage.
People experiencing anxiety may:
- Constantly anticipate negative outcomes
- Feel tense or on edge
- Avoid situations that trigger fear or worry
- Experience physical symptoms such as a racing heart, muscle tension, or stomach discomfort
- Find it difficult to concentrate because their thoughts are occupied by worries
In ADHD, difficulties with attention are often linked to challenges in regulating focus and executive functioning. In anxiety, concentration may be disrupted by persistent worry, heightened alertness or preoccupation with potential threats. These experiences can overlap, making the distinction less straightforward than it may seem.
Can someone have both ADHD and anxiety?
Yes, it is common for ADHD and anxiety to happen together.
For some people, living with untreated ADHD can lead to anxiety over time. Missing deadlines, forgetting tasks, or struggling at school or work can increase stress and self-doubt.
On the other hand, anxiety can make ADHD symptoms stand out more. Ongoing worry can make it even harder to concentrate, cause mental fatigue, and make it harder to stay organised.
When someone has both ADHD and anxiety, the symptoms can be more complicated than if only one condition is present. This is why getting a thorough assessment is important before making a diagnosis.
How do healthcare professionals tell the difference?
A comprehensive assessment involves exploring a person’s developmental history, current symptoms and how these affect daily functioning. Clinicians may also consider information from family members, school records or standardised assessment tools where appropriate. Importantly, the assessment considers other possible explanations for the symptoms rather than relying on a checklist alone.
When did the symptoms begin?
ADHD symptoms usually begin during childhood, even if they were not recognised at the time.
Anxiety can develop at any stage of life, although some anxiety disorders also begin during childhood or adolescence.
What is causing problems in concentration?
Someone with ADHD may become distracted or “space out” even when calm because regulating attention is challenging.
Someone with anxiety may struggle to focus because their thoughts are dominated by worries or fears.
Are the symptoms consistent across different situations?
ADHD symptoms are generally present across multiple settings, such as at home, school, work, or in social situations.
Anxiety symptoms may become more noticeable during stressful situations or around specific triggers, although this varies depending on the type of anxiety disorder. They may also notice them more during quiet moments like before bedtime.
Why self-diagnosis can be difficult
Online checklists can help you learn about ADHD and anxiety, but they cannot tell you which condition you have. Symptoms like poor concentration, forgetfulness, irritability, and sleep problems can show up in many different conditions. These symptoms alone don’t always provide a clear answer.
Other factors, including poor sleep, depression, prolonged stress and certain physical health conditions, can also affect concentration and memory. A professional assessment helps consider these possibilities rather than assuming that difficulties with attention must be caused by ADHD or anxiety.
Frequently Asked Questions
Can ADHD cause anxiety?
ADHD and anxiety frequently occur together. For some individuals, ongoing challenges with organisation, deadlines or daily responsibilities may contribute to anxiety. However, anxiety can also develop independently of ADHD.
Can adults be diagnosed with ADHD?
Yes. Some people are diagnosed in adulthood after recognising that lifelong attention or organisational difficulties continue to affect work, relationships, or daily responsibilities.
Is it possible to have ADHD without being hyperactive?
Is it possible to have ADHD without being hyperactive?
Understanding the Difference Between ADHD and Anxiety
ADHD and anxiety can look similar, but they are different conditions and may need different approaches to assessment and treatment. Understanding how and why these conditions overlap is a helpful first step in figuring out what might be going on for you.
When difficulties with attention, organisation or persistent worry begin to affect everyday life, understanding their underlying causes can be an important first step. At Private Space Medical, our psychiatrists and psychologists provide comprehensive assessments and personalised care for individuals experiencing ADHD, anxiety and related concerns. A professional consultation can help clarify your symptoms and explore appropriate next steps.
