Medically reviewed by Dr Dhivian, MBBS, MMed (Family Medicine), Accredited Family Physician, Angsana Medical
The short answer
Anxiety symptoms include both emotional signs, such as constant worry, restlessness, and difficulty concentrating, and physical ones, such as a racing heart, tight chest, and stomach upset. Occasional anxiety is normal. It is worth seeking help when it is persistent, out of proportion, or interfering with your daily life.
What anxiety is, and when it becomes a problem
Anxiety is a normal human response, not a flaw. It is the body's built-in alarm system, designed to keep us alert to danger and to help us rise to challenges. Feeling anxious before an exam, a big presentation, or a difficult conversation is not only normal, it is often useful. The alarm is meant to switch on when needed and settle once the situation has passed.
Anxiety becomes a problem when that alarm stays on when it should not, or fires far more strongly than a situation warrants. Instead of coming and going, the worry becomes constant, feels difficult to control, and starts to interfere with sleep, work, relationships, or everyday life. At that point it may be an anxiety disorder rather than ordinary stress, and anxiety disorders are among the most common mental health conditions worldwide. They are also very treatable, which is the most important thing to know.
The difference between stress and an anxiety disorder is worth understanding. Stress usually has a clear external cause and tends to ease once that cause is dealt with. Anxiety can persist even when there is no obvious threat, or can attach itself to many different worries at once. Many people live with the symptoms for a long time, assuming it is just their personality or that they should be able to manage on their own. Recognising the signs is the first step towards feeling better.
The signs and symptoms of anxiety
The signs of anxiety go well beyond simply feeling worried, which is one reason people do not always realise that what they are experiencing is anxiety. The symptoms tend to fall into emotional, mental, and behavioural groups, and most people notice a mix rather than every single one.
Emotionally and mentally, common anxiety symptoms include persistent or excessive worry, a sense of dread or that something bad is about to happen, feeling on edge or unable to relax, irritability, and difficulty concentrating or a mind that goes blank. Many people also describe overthinking, expecting the worst outcome, and finding it hard to switch off, particularly at night. Behaviourally, anxiety often shows up as avoiding situations that trigger it, seeking constant reassurance, restlessness, or struggling with sleep, either getting to sleep or waking through the night.
A key feature is that these symptoms are persistent and feel out of proportion to what is actually happening. Everyone worries sometimes. With an anxiety problem, the worry is harder to control, shows up more days than not, and takes a real toll on how you function and feel. If you find yourself asking how to know if you have anxiety, the honest answer is usually found less in any single symptom and more in this overall pattern of persistence and impact.
Physical symptoms of anxiety and anxiety attacks
One of the most misunderstood parts of anxiety is how physical it can feel. Because anxiety activates the body's stress response, it produces very real physical symptoms, and many people first seek help thinking something is wrong with their heart or stomach rather than realising anxiety is the cause. These physical symptoms of anxiety are genuine, not imagined, and they are the body responding to a false alarm.
| Where it shows up | Common physical symptoms |
|---|---|
| Heart and chest | Racing or pounding heartbeat, chest tightness or discomfort |
| Breathing | Shortness of breath, a feeling of not getting enough air |
| Stomach | Nausea, stomach upset, "butterflies", changes in appetite |
| Body | Muscle tension and aches, trembling, sweating, headaches, dizziness |
| Energy and sleep | Fatigue, restlessness, difficulty sleeping |
When these physical symptoms surge suddenly and intensely, it may be an anxiety attack, sometimes called a panic attack. Anxiety attack symptoms typically come on quickly and can include a pounding heart, shortness of breath, chest tightness, dizziness, sweating, shaking, and an overwhelming sense of fear or of losing control. They can be frightening precisely because they feel physical, and many people worry they are having a heart problem. Panic attacks usually peak within minutes and then ease, and while they are distressing, they are not dangerous in themselves.
One important safety note. Because some of these symptoms overlap with heart and breathing problems, you should not assume it is "just anxiety" the first time, or if the symptoms are different from your usual pattern. If you have severe chest pain, real difficulty breathing, or you feel faint or lose consciousness, treat it as an emergency and seek urgent medical care. A doctor can also help make sure nothing physical is being missed.
Is it just stress, or something more?
This is the question that brings many people in, and it is a sensible one to ask. A helpful way to tell the difference is to look at four things: how long it has lasted, how much control you feel you have, how proportionate it is, and how much it is affecting your life. Ordinary stress is usually tied to something specific, feels manageable, and lifts once the pressure is off. Something more, such as an anxiety disorder, tends to be persistent, feels hard to control, is out of proportion to events or has no clear trigger, and interferes with sleep, work, or relationships.
As a practical guide, it is worth speaking to a doctor if worry or the symptoms above have been present most days for several weeks, if they are affecting your sleep, concentration, work, or relationships, if you are avoiding things you would normally do, or if you are having anxiety attacks. You do not need to wait until it becomes severe. Seeking help earlier generally makes anxiety easier to turn around, and getting an assessment does not commit you to any particular treatment. It simply gives you clarity.
It is also worth knowing that anxiety often travels with other things, such as low mood, high stress, or physical health issues, and sometimes with conditions that mimic it, such as thyroid problems. This is exactly why a proper assessment is useful rather than self-diagnosis from a symptom list.
Talking it through is usually the first step, and an assessment can rule out physical causes of anxiety.
What helps, and how a mental health-trained family doctor can help
The most reassuring fact about anxiety is that it responds well to treatment, and most people improve with the right support. There is a lot you can do yourself, and there is professional help available when self-help is not enough. Often a combination works best.
Self-help measures with good evidence include regular physical activity, protecting your sleep, reducing caffeine and alcohol, and simple breathing and relaxation techniques that help calm the body's alarm response in the moment. Structured psychological therapy, such as talking therapies that help you understand and reframe anxious thoughts, is one of the most effective treatments for anxiety. Where symptoms are more significant, a doctor may discuss medical treatment as well, chosen and monitored based on your situation. Where stress and anxiety are affecting things, our mental health support can help you find the right approach.
A family doctor is a sensible first port of call. At Angsana Medical, an assessment with our family doctors can help you understand what you are experiencing, check for any physical factors that can cause or worsen anxiety, and work out a plan that fits you, whether that is self-help guidance, counselling, therapy, or medical treatment, referring on where more specialised help is appropriate. Seeing a family doctor first means you get a clear starting point rather than having to navigate it alone. The first step, and often the hardest, is simply talking to someone. Our doctors are particularly trained and experienced in mental health and can diagnose and treat mild-moderate anxiety disorders in-house, saving you a trip to the psychiatrist.
You do not have to manage anxiety on your own
If worry, tension, or the physical symptoms described here have been affecting your daily life, a short, confidential consultation can help you understand what is going on and what will help. Our family doctors approach this calmly and without judgement.
Frequently Asked Questions About Anxiety
What are the main symptoms of anxiety?
Anxiety symptoms include emotional and mental signs such as persistent worry, a sense of dread, feeling on edge, irritability, and difficulty concentrating, as well as behavioural signs such as avoiding situations, seeking reassurance, and poor sleep. It also causes very real physical symptoms, including a racing heart, chest tightness, shortness of breath, stomach upset, muscle tension, and fatigue. Most people experience a mix, and the key feature is that the symptoms are persistent and out of proportion to what is happening.
What does an anxiety attack feel like?
An anxiety attack, often called a panic attack, is a sudden, intense surge of fear along with strong physical symptoms. These commonly include a pounding heart, shortness of breath, chest tightness, dizziness, sweating, trembling, and a sense of losing control. It usually peaks within minutes and then eases. Attacks are frightening because they feel so physical, but they are not dangerous in themselves. If you are ever unsure whether it is anxiety or a heart problem, especially the first time, seek medical care to be safe.
How do I know if I have anxiety or just stress?
Look at four things: how long it has lasted, how controllable it feels, how proportionate it is, and how much it affects your life. Stress is usually tied to a specific cause and eases once that passes. Anxiety tends to be persistent, hard to control, out of proportion or without a clear trigger, and it interferes with sleep, work, or relationships. If worry and symptoms have been present most days for several weeks and are affecting your daily life, it is worth speaking to a doctor.
Can anxiety cause physical symptoms?
Yes, very much so. Anxiety activates the body's stress response, which produces genuine physical symptoms such as a racing heart, chest tightness, shortness of breath, nausea, muscle tension, sweating, dizziness, and fatigue. Many people first seek help thinking something is wrong with their heart or stomach. These symptoms are real, not imagined, though a doctor should still check that nothing else is causing them, particularly if they are new or severe.
When should I see a doctor about anxiety?
Consider seeing a doctor if worry or the symptoms above have been present most days for several weeks, if they are affecting your sleep, concentration, work, or relationships, if you are avoiding normal activities, or if you are having anxiety attacks. You do not need to wait until it feels severe, as anxiety is usually easier to treat earlier. Seek urgent care if you ever have severe chest pain, real difficulty breathing, or feel faint, so that a physical cause can be ruled out. Angsana Medical offers specialised assessment and management for anxiety disorders.