Where Anxiety Shows Up in the Body
You've probably heard the phrase "it's all in your head" about anxiety. It's not. Anxiety is a full-body experience, and for a lot of people (and a lot of kids), the body sends the message long before the mind catches up to what's actually going on.
You've probably heard the phrase "it's all in your head" about anxiety. It's not. Anxiety is a full-body experience, and for a lot of people (and a lot of kids), the body sends the message long before the mind catches up to what's actually going on.
If you've ever had a racing heart before a presentation you didn’t know you were nervous about, or watched your child clutch their stomach on a school morning with no obvious trigger, you've seen this in action. Let's talk about why that happens and where to actually look for it.
Why Anxiety Lives in the Body, Not Just the Mind
Your nervous system is built to protect you from danger, and it doesn't wait around for your rational brain to weigh in first. When it senses a threat, real or perceived, it triggers a fight, flight, or freeze response: heart rate climbs, muscles tense, breathing gets shallow, digestion slows down. This system doesn't know the difference between an actual emergency and a stressful email, a tough conversation, or a pop quiz. It reacts the same way either way.
This can often feel confusing. The physical response feels so much bigger, random, because the "danger" isn't a tiger. It's a meeting, a deadline, a fight with a friend, a test. But the body doesn't get that memo. It just responds.
A Head-to-Toe Look at Where This Shows Up
Head and mind. Racing or repetitive thoughts, trouble concentrating, difficulty making even small decisions, tension headaches.
Chest and heart. A tight or heavy feeling in the chest, a racing or pounding heart, shallow or quick breathing that can sometimes feel like you can't get a full breath in.
Stomach. Nausea, "butterflies," a knotted or upset stomach, appetite changes in either direction (not hungry at all, or reaching for food to self-soothe).
Muscles. Jaw clenching, shoulder or neck tension, restlessness, an inability to sit still, or the opposite: feeling physically frozen.
Sleep. Trouble falling asleep because the mind won't quiet down, or waking up already feeling wired and on edge before the day has even started.
None of these symptoms are exclusive to anxiety, which is part of why they're so often missed or misattributed. But when several of them show up together, especially in a repeating pattern tied to a specific situation, that's usually the nervous system trying to tell you something.
How This Looks Different for Kids
Kids usually don't have the language yet to say "I'm anxious." What they have instead is a body that reacts, and a limited vocabulary to explain it. So it comes out as "my stomach hurts," a sudden headache, tears that seem to come out of nowhere, or an outburst that is not matching whatever just happened. A good indicator that these could be symptoms of anxiety are when the pattern persists, particularly around school mornings, new events, or changes.
How This Looks Different for Adults
Adults are often better at naming the feeling, but many have also spent years normalizing it. Chronic low-grade anxiety can start to feel like "just how I am," a jaw that's always a little tight, a stomach that's never quite settled, sleep that's never quite restful. It gets absorbed into personality ("I'm just a worry-wart," "I'm a little high strung") instead of recognized as something the nervous system is actively doing, and something that can actually shift with the right support.
What to Do With This Awareness
Name the sensation without judgment. "My chest is tight" or "my stomach is in knots" is more useful than "I'm fine," even if you don't yet know the reason behind it.
Try slowing the breath down. A longer exhale than inhale (in for 4, out for 5) signals safety to the nervous system faster than most people expect.
Know when to loop in a doctor first. Physical symptoms deserve medical attention, especially if they're new, severe, or unexplained. Ruling out other causes isn't a detour from addressing anxiety; it's part of doing it responsibly.
Bring the pattern to therapy, not just the moment. A single stressful day isn't usually the concern. A repeating pattern, tied to certain situations or times, is worth exploring with support.
If This Sounds Familiar
Whether it's your child's stomachaches every school morning or your own jaw that never quite unclenches, these patterns are worth paying attention to, and they're very treatable. I work with both kids navigating school anxiety and adults working through anxious thought patterns, all through online sessions that fit into a real schedule.
If any of this sounds like your house, or your own body, I'd love to talk. Reach out to learn more!