3 Signs You're Stuck in Fight-or-Flight

Here's something they don't teach you in school: your nervous system has a default setting. A baseline state it returns to again and again. And for most of us, without realising it, that default has become fight-or-flight.

Not the dramatic, life-or-death version our ancestors experienced. The modern version. Low-grade, chronic, always-on. The body bracing for threats that never come but never quite disappear. The system is stuck "on" with no off switch.

The tricky part? When you've lived this way long enough, it starts to feel normal. You forget what calm actually feels like. You don't realise you're stuck because the cage has become familiar.

So let's talk about the signs. Not to scare you. To help you recognise what might be happening beneath the surface.the 

First, A Quick Refresher

Your autonomic nervous system has two main modes:

Sympathetic (Fight-or-Flight): Your accelerator. Activated when there's a threat. Pupils dilate, heart rate increases, digestion slows, cortisol and adrenaline surge. You're ready to fight, flee, or (in modern terms) perform, push, and power through.

Parasympathetic (Rest-and-Digest): Your brake. Activated when you're safe. Heart rate slows, digestion works, the immune system functions, and repair happens. You're able to rest, connect, and recover.

You need both. The problem isn't having a sympathetic response. The problem is when the accelerator gets stuck, and the brake stops working.

Here are three signs that might be happening for you.

Sign #1: You're Always Tired But Can't Sleep

This is the classic "tired but wired" experience.

You drag through the day, running on caffeine and willpower. Your body feels heavy, your brain foggy, and your energy is non existent. You tell yourself you'll crash tonight and finally catch up.

Then bedtime comes. You're exhausted. You close your eyes. And suddenly your brain decides this is the perfect moment to:

• Replay every awkward conversation from the last decade

• Worry about tomorrow's meeting

• Plan your entire week in excruciating detail

• Remember that thing you forgot to do in 2017

You're physically shattered but mentally racing. Sleep, when it comes, is light and easily disturbed. You wake up feeling like you never really rested.

What's happening: Your body is stuck in sympathetic mode. During the day, it's running on emergency reserves—hence the exhaustion. But at night, when there are no external distractions, the internal alarm system stays active. Your brain is still scanning for threats, still ready to respond. It won't let you descend into deep, restorative sleep because, from its perspective, that would be unsafe.

If this is you: Your nervous system needs help learning that night is safe for deep rest. Consistent evening routines, temperature regulation (a warm bath or cool room), and practices that signal safety to the body can begin to shift this pattern.

Sign #2: You're Reactive, Not Responsive

You know that feeling when something small goes wrong, and you completely lose it?

The coffee spills, and it's not just annoying—it's catastrophic. Your partner asks a gentle question, and you snap back before thinking. A work email lands wrong, and you're drafting an angry response before you've taken a single breath.

Then, later, you calm down and think: "Why did I react like that? It wasn't that serious."

What's happening: Your nervous system is already primed for threat. The accelerator is pressed to the floor. So when something—anything—happens, you don't have the capacity to pause, assess, and choose a response. You just react. Because your system is already in fight mode, it doesn't take much to trigger the actual fighting.

This isn't a character flaw. It's physiology. Your prefrontal cortex—the part of your brain that helps you pause and choose wisely—has been partially offline because chronic stress deprioritises it. You're not choosing to be reactive. Your brain has lost the capacity to be otherwise in those moments.

If this is you: The goal isn't to "try harder" to be calm. It's to build the physiological capacity for calm. Practices that regulate your baseline—breathwork, cold exposure, deliberate rest—gradually give your brain more space between stimulus and response.

Sign #3: You Can't Properly Relax, Even When You Try

You carve out time to rest. You're not working. The kids aren't demanding anything. You've got a rare hour of nothing.

And you feel... awful. Fidgety. Irritable. Almost itchy. Your mind races. You reach for your phone without thinking. You invent a task that "really needs doing." Within ten minutes, you're back in motion, proving to yourself that you just can't relax.

What's happening: Remember that your nervous system's primary job is keeping you safe. When you're chronically in fight-or-flight, your system learns that vigilance equals survival. So when you suddenly try to relax—to let your guard down—your nervous system panics.

"Wait," it says. "Why are we stopping? We only stop when we're safe. But we're not safe—we're always scanning for threats. Something must be wrong. Let's create some anxiety to keep us alert."

The discomfort of relaxation isn't a sign you're doing it wrong. It's a sign your nervous system is unfamiliar with safety. It needs practice. It needs repeated exposure to rest to learn that rest isn't a threat.

If this is you: Start microscopically. Not an hour of meditation. One minute of stillness. Then two. Let your system build tolerance at its own pace. And when the discomfort comes, don't fight it. Just notice it. "Oh, there's that fidgety feeling. Hello." Over time, your nervous system learns that stillness is safe.

Bonus Sign: Your Body Is Talking

This isn't technically a separate sign—it's what happens when the others continue long enough.

• Chronic tension in your shoulders, neck, and jaw

• Digestive issues that come and go (or stay)

• Frequent illnesses that take forever to recover from

• Headaches with no clear cause

• Low back pain that never quite resolves

• Skin issues that flare with stress

Your body keeps the score. When your nervous system is stuck in fight-or-flight, your body is in a constant state of preparation. Muscles stay braced. Digestion gets deprioritised. Inflammation increases. Eventually, the body starts sending louder signals.

If this is you: Listen. Your body isn't broken. It's communicating. Those symptoms are messages. The question isn't "how do I make this symptom go away?" It's "What is my system trying to tell me?"

The Path Out

If any of this feels familiar, here's what I want you to know:

You're not broken. You're not failing. Your nervous system is doing exactly what it evolved to do—trying to keep you safe in a world that doesn't feel safe.

But here's the thing: your nervous system can learn new patterns. It can discover that the threat has passed. It can find its way back to regulation. Not through force or willpower. Through consistent, gentle practice.

Small steps:

• Notice without judgment. Just observe your state.

• Breathe. Long exhales signal safety to the nervous system.

• Move. Shake it out. Stretch. Let the body discharge.

• Seek cold. A minute of cold exposure can reset a stuck system.

• Rest deliberately. Even one minute of stillness is practice.

The goal isn't to never feel fight-or-flight. That's normal and necessary. The goal is flexibility—the ability to mobilise when needed and return to rest when safe.

Your nervous system wants to find its way home. It just needs you to show it the path.