Anxiety often feels like your body and mind are bracing for danger that has not arrived. In the body it can mean a racing heart, tight chest, fast breathing, shaky hands, sweating, an upset stomach and tense muscles. In the mind it can mean racing “what if” thoughts, dread, trouble concentrating and a feeling that you cannot switch off. It can be a low constant hum or a sudden wave of intense fear.
This is general information, not a diagnosis. If you are in crisis or thinking about harming yourself, call or text 988 in the US, or contact your local emergency services or crisis line if you are elsewhere.
Because the symptoms are physical as well as mental, many people first suspect something is medically wrong. This article describes what anxiety can feel like in your body, thoughts and behavior, how worry differs from panic, when it may be worth getting support and what people do to cope.
A normal alarm that can get stuck
Anxiety is part of the body’s threat response. When you sense danger, your heart rate and breathing speed up and your muscles tense. That is useful before a driving test or a job interview. It becomes a problem when the alarm goes off too often, too strongly or without a real threat, and starts to shape what you do.
The National Institute of Mental Health describes anxiety disorders as involving more than occasional worry or fear: the anxiety does not go away, is felt in many situations and can get worse over time. The main types it names are generalized anxiety disorder, panic disorder, social anxiety disorder and phobia-related disorders. NIMH also reports that about one-third of adolescents and adults in the US will experience an anxiety disorder at some point. Only a clinician can diagnose one.
What it can feel like in your body
Physical symptoms are often the loudest part. People commonly describe:
- A fast, pounding or fluttering heartbeat.
- Chest tightness or a feeling you cannot take a full breath.
- Shaking or trembling.
- Sweating or cold, clammy hands.
- Dizziness or lightheadedness.
- Nausea or stomach knots.
- Tight shoulders, a clenched jaw or headaches.
- Tingling in the hands, feet or face.
- Trouble sleeping, or waking in the night with a racing mind.
These sensations are real and can be frightening. Chest pain and breathing trouble can also be signs of medical problems, so get new or severe symptoms checked rather than assuming it is anxiety.
What it can feel like in your mind
Mental symptoms can be just as draining:
- Constant worry: running through worst-case scenarios about work, health, money or relationships.
- Racing thoughts: a mind that jumps and will not settle.
- Feeling on edge: being jumpy or restless even when nothing is wrong.
- Difficulty concentrating: your mind going blank.
- Dread: a vague sense that something bad will happen.
- Irritability: a short temper from being constantly tense.
- Overthinking conversations: replaying what you said and how others reacted.
- Feeling detached: an unreal or “far away” sensation during intense anxiety.
How anxiety changes what you do
Anxiety also shapes behavior, and that can keep it going:
- Avoiding: skipping events, calls, appointments or tasks that set it off. Avoidance brings short-term relief but can teach your brain that the situation really was dangerous.
- Reassurance seeking: repeatedly asking others if things are okay.
- Over-preparing: rehearsing, over-planning or double-checking.
- Putting things off: delaying tasks you fear you will do badly.
- Using substances: relying on alcohol, cannabis or heavy caffeine, which can make anxiety worse later.
- Restlessness: pacing, fidgeting or picking at skin or nails.
Worry, ongoing anxiety and panic
| Feature | Everyday worry | Ongoing anxiety | Panic attack |
|---|---|---|---|
| Trigger | A specific, realistic concern | Many topics, often out of proportion | Often sudden, sometimes with no clear trigger |
| Intensity | Mild to moderate | Moderate, persistent | Intense, overwhelming |
| Duration | Passes when the issue resolves | Weeks to months | A wave of fear that builds quickly and usually eases within minutes |
| Main symptoms | Tension, thinking about the problem | Muscle tension, restlessness, poor sleep, constant worry | Pounding heart, chest tightness, shortness of breath, dizziness, fear of losing control |
| Effect on life | Minimal | Interferes with work, sleep, relationships | Fear of the next attack, avoiding places |
A panic attack can feel like a heart attack, which is why many people go to an emergency department the first time. If you have chest pain and are not sure what it is, get checked. A doctor can rule out heart and breathing problems and then talk about panic.
Anxiety can look different from person to person
People expect anxiety to look nervous and jittery, but it can be quiet or hidden.
- Anxiety that looks like coping well: you get everything done, at the cost of constant tension and fear of failure, and people around you think you are fine.
- Social anxiety: intense fear of being judged or embarrassed, leading to avoidance or heavy rehearsal.
- Health worries: frequent worry about illness, with repeated body checking or searching online.
- Irritability: snapping and impatience rather than visible fear.
- Mostly physical: stomach upset, headaches or muscle tension with little conscious worry.
- Night-time worry: a quiet room and a tired mind give worries room to grow.
Anxiety also overlaps with low mood and with chronic stress. If you are unsure which describes you, what can depression feel like day to day covers the other side, and how do you know when stress is starting to affect your functioning covers where stress shades into trouble.
Why anxiety can keep going
Anxiety can feed itself. You feel a sensation, such as a skipped heartbeat, and read it as dangerous. Fear speeds your heart further, which seems to confirm the danger. You avoid the situation, which feels better for a moment, and your comfort zone shrinks. Therapy for anxiety often works on this loop. The National Institute of Mental Health describes exposure therapy, used for anxiety disorders, as a way to build tolerance for feared situations, and cognitive behavioral therapy as a way to notice and change unhelpful thinking patterns. If you are weighing that option, how do you know if therapy could help lays out what to expect.
When anxiety is worth raising with someone
Occasional anxiety is part of life. It may be time to talk to a doctor or therapist when:
- It lasts for weeks or longer, or keeps coming back.
- You cannot seem to control the worry.
- It disrupts sleep, work, school or relationships.
- You avoid things you need or want to do.
- You have repeated panic attacks, or fear having them.
- You rely on alcohol or other substances to cope.
What people do in the moment
These are common coping aids. They may ease the intensity of anxiety for a while, but they are not a treatment for an anxiety disorder:
- Slow breathing: breathing in gently and out for longer than you breathe in, for a few minutes.
- Grounding: naming a few things you can see, touch and hear to bring attention back to the room.
- Moving: a walk can burn off some of the restless energy.
- Cutting back on caffeine: coffee and energy drinks can mimic or worsen the physical feelings.
- Labeling it: saying “this is anxiety” can make the fear feel less like a threat.
NIMH also lists relaxation activities and time in nature among general self-care ideas. For more everyday strategies, see what self-care actually helps when you’re overwhelmed.
Treatment and when to get medical help
Anxiety disorders are treatable. The approaches most often discussed are psychotherapy, such as cognitive behavioral therapy, and in some cases medication. Which fits a person is a decision for them and a qualified clinician, and no one should start or stop medication without medical advice. A doctor can also check for physical contributors such as other health conditions, medicines, caffeine or substance effects.
See a doctor if symptoms last several weeks, interfere with your life or include panic attacks. Seek emergency care for chest pain, trouble breathing, fainting or symptoms that feel like a medical emergency. If you may act on thoughts of harming yourself or ending your life, call or text 988 in the US, or contact your local emergency services or crisis line, right now.
Where this comes from
This article draws on the National Institute of Mental Health’s overview of anxiety disorders and its page on psychotherapies, which cover the types of anxiety disorder, the statement that anxiety disorders involve more than occasional worry, exposure therapy and cognitive behavioral therapy, and its guidance on caring for your mental health. Statistics and guidance are updated over time, so check the current figures at the source. This page is general information, not a diagnosis, and anyone in crisis should call or text 988 in the US or contact local emergency services or a crisis line elsewhere.