Anxiety is a normal response to threat or uncertainty, and everyone feels it at times. It becomes a problem when it is persistent, out of proportion to the situation, or starts to interfere with work, relationships or daily life. Because anxiety affects the body, thoughts and behavior, the signs can be easy to miss or to blame on something else. This guide lists the most common symptoms and explains when it is worth seeking support.
Physical symptoms of anxiety
When your brain detects a threat, it activates the body’s stress response, preparing you to fight or flee. That response is useful in real danger but uncomfortable when it fires repeatedly. Common physical symptoms include:
- Racing or pounding heartbeat
- Shortness of breath or a feeling of tightness in the chest
- Muscle tension, headaches, or jaw and shoulder pain
- Sweating, trembling or shaking
- Nausea, stomach discomfort or changes in digestion
- Dizziness or light-headedness
- Fatigue, even after resting
These sensations can be alarming, and worrying about them often makes them stronger. Many people with health anxiety monitor their bodies closely, which is explored in our guide to constant symptom checking. Because physical conditions can cause similar symptoms, see a doctor if symptoms are new, severe or unexplained.
Emotional and mental symptoms
- Persistent worry that is hard to control
- Feeling on edge, restless or keyed up
- Irritability
- Difficulty concentrating or a feeling that your mind goes blank
- A sense of dread or expecting the worst
- Difficulty falling or staying asleep
Several of these, restlessness, fatigue, difficulty concentrating, irritability, muscle tension and sleep problems, are listed among the features of generalized anxiety disorder by the National Institute of Mental Health. Thought patterns such as catastrophic thinking and difficulty tolerating uncertainty often sit underneath them. See our article on intolerance of uncertainty for more.
Behavioral symptoms
Anxiety also changes what people do. The most important behavioral sign is avoidance: skipping events, calls, appointments or places that trigger worry. Others include constantly seeking reassurance, over-preparing, checking repeatedly, procrastinating, or relying on safety behaviors such as always sitting near an exit. These strategies reduce distress briefly but usually keep anxiety going in the long run. You can read more in why avoidance makes anxiety worse and reassurance seeking.
Normal worry or an anxiety disorder?
Normal worry is tied to a real situation, is proportionate, and fades once the situation passes. An anxiety disorder is more likely when worry is excessive, lasts for months, is hard to switch off, and causes distress or interferes with daily life. Only a qualified professional can diagnose an anxiety disorder, but a screening tool can help you decide whether to seek one. Our free anxiety self-assessment is a screening tool, not a diagnosis.
When to seek help
Consider speaking to a doctor or mental health professional if anxiety has lasted several weeks, you avoid important activities, you are using alcohol or other substances to cope, or you are having panic attacks. Effective treatments exist, including cognitive behavioral therapy, which has strong evidence across anxiety disorders, and in some cases medication. If you feel you may harm yourself or are in crisis, contact your local emergency number or a crisis service immediately.
For practical tools you can start with today, explore the Anxiety Toolkit.
Frequently asked questions
Can anxiety cause physical symptoms without feeling worried?
Yes. Some people notice mainly bodily sensations such as tension, stomach upset or a racing heart, without being aware of anxious thoughts. A doctor can rule out other causes.
How long do anxiety symptoms last?
It varies. A stressful event may cause symptoms that fade within days. When symptoms persist for weeks or months, it is worth seeking professional advice.
Is anxiety curable?
Anxiety disorders are highly treatable. Many people recover or learn to manage symptoms so that they no longer interfere with life, although some anxiety is a normal part of being human.
References and further reading
This article is educational and does not replace assessment or treatment by a qualified health professional.
