Signs That Look Like Anxiety but I'm Learning Are Actually Nervous System Overload

Jennifer DeSha
Apr 3
5 min read

Updated: Apr 5

Welcome to my Unmasking Autism series. This is where I share what I’m learning as I begin to understand my autistic experience and gently come home to myself. These posts are personal, honest, and written with tenderness for the parts of me that have spent years surviving.

If you’ve ever said “I’m anxious” but couldn’t explain what you were anxious about, this post is for you.

For many autistic adults, what gets labeled as anxiety is sometimes something else entirely: nervous system dysregulation. That doesn’t mean anxiety isn’t real. It means that sometimes the root cause isn’t worry or fear, it’s overstimulation, sensory overload, social exhaustion, burnout, or a body that has been pushed past its capacity.

I’ve learned that when I’m dysregulated, my body can feel panicky even if my mind isn’t “thinking anxious thoughts.” It’s like my nervous system is sounding an alarm, and I’m left trying to interpret it.

So here’s a list of common things that are often mistaken for anxiety, but may actually be autistic dysregulation.

A quick note

This isn’t medical advice and it isn’t meant to diagnose you. It’s a lived-experience guide to help you notice patterns and get curious. If symptoms are severe, persistent, or scary, it’s always okay to talk with a trusted doctor or therapist.

What’s often mistaken for anxiety (but may be dysregulation)

1) “Anxiety” with no clear trigger

You feel dread, panic, or a buzzing urgency… but nothing specific happened. This can be your nervous system responding to accumulated stress, sensory input, or being “at capacity” rather than a worry-based anxiety spiral.

Clue it’s dysregulation: it improves with quiet, rest, low stimulation, movement, pressure, hydration, food, or time alone.

2) Restlessness and pacing

You can’t sit still. You’re walking in circles, shifting positions constantly, bouncing your leg, or roaming room to room. This can be your body trying to burn off excess nervous system energy.

Clue it’s dysregulation: you feel physically uncomfortable, not mentally worried.

3) Trouble focusing or “brain fog”

Your thoughts feel slow, scattered, or stuck. Reading feels impossible. Conversations feel hard. This can be shutdown, cognitive overload, or burnout symptoms.

Clue it’s dysregulation: you feel mentally “offline” after sensory or social demands.

4) Irritability, snapping, or sudden anger

You feel prickly, impatient, or ragey over small things. Often this is overstimulation or unmet needs, not a personality issue.

Clue it’s dysregulation: it happens more when you’re hungry, tired, overstimulated, or after too much interaction.

5) Feeling “out of body” or detached

You feel unreal, numb, floaty, or like you’re watching yourself. This can be a freeze response, shutdown, or dissociation linked to overwhelm.

Clue it’s dysregulation: it shows up after loud noise, crowds, conflict, or pressure.

6) Sensory sensitivity spikes

Sounds feel sharper. Light feels brighter. Clothing feels unbearable. Smells feel offensive. When dysregulated, sensory tolerance drops dramatically.

Clue it’s dysregulation: your “anxiety” rises in noisy, bright, crowded places.

7) A tight chest, racing heart, shakiness

Physical anxiety symptoms can also be dysregulation symptoms. Your nervous system can activate without a mental storyline.

Clue it’s dysregulation: your body feels panicked but your thoughts aren’t catastrophic.

8) Nausea, stomach issues, appetite swings

Your stomach flips, you feel queasy, you lose appetite, or you eat compulsively. Autism + dysregulation often shows up in the gut.

Clue it’s dysregulation: it happens after sensory overload, social pressure, or schedule changes.

9) Shutdown after “normal” outings

You go to dinner, a gathering, the store, church, or an event and then you crash. That crash can look like depression or anxiety, but often it’s recovery from masking and overstimulation.

Clue it’s dysregulation: you need solitude, silence, or sleep to return to baseline.

10) “Overthinking” that’s actually processing delay

You replay conversations, analyze tone, rehearse what to say next time. Sometimes that’s anxiety, but sometimes it’s autism-related processing plus social pattern recognition.

Clue it’s dysregulation: it gets worse when you’re tired or socially maxed out.

11) Feeling an urgent need to escape

You want to run, leave, hide, go to the bathroom, go to the car. That’s often your body seeking reduced input.

Clue it’s dysregulation: you feel relief immediately when you leave the environment.

12) Meltdowns that get labeled as panic attacks

Crying, rage, yelling, shaking, or collapsing can be a meltdown rather than “just anxiety.” A meltdown is often a response to overload, not fear.

Clue it’s dysregulation: it follows sensory overwhelm, transitions, demands, or social pressure.

13) Feeling “fine” until you suddenly aren’t

You can be functioning, smiling, doing the thing… then you hit a wall. This is common when you’re masking or ignoring early signals.

Clue it’s dysregulation: your body gives signals (jaw clenching, pacing, irritability) before the crash.

14) Insomnia that doesn’t respond to “calming thoughts”

You can’t sleep because your body feels wired. That can be a dysregulated nervous system, not anxious thinking.

Clue it’s dysregulation: you feel tired but physically unable to settle.

15) Needing repetitive comfort behaviors

Rocking, fidgeting, humming, pressure, earplugs, blanket nests, same foods, same shows. These are often regulation tools, not “avoidance.”

Clue it’s dysregulation: these behaviors help you come back to baseline.

A simple way to tell the difference

Here’s a question that helps me:

Is my mind afraid, or is my body overloaded?

Anxiety often centers on worry, fear, future-thinking, catastrophic thoughts.
Dysregulation often centers on input, capacity, overwhelm, recovery, sensory load.

Sometimes it’s both. But knowing the difference helps you respond with the right support.

What helps when it’s dysregulation (a quick toolkit)

These are not one size fits all, but they’re common nervous system supports for autistic adults:

Reduce input: dim lights, quiet room, earplugs, step outside
Movement: pacing on purpose, gentle bouncing, walking, stretching
Deep pressure: weighted blanket, tight socks, compression, hugs
Hydration and protein: check basic needs first
Safe foods: predictable textures and flavors
Solitude: time alone to recoup after social demands
Stimming: music, rocking, fidgeting, dancing, repetitive motion
Predictability: routine, list-making, simplifying decisions

Why this matters

When dysregulation gets mislabeled as anxiety, we often try to “think our way out” of something that needs body-based support. We shame ourselves for struggling, we push harder, and we burn out faster.

But when you can name dysregulation, you can respond with compassion instead of self-judgment.

You’re not failing. You’re overloaded. And you deserve support.

xo,

Thank you for being here. If any part of this resonated, I hope you feel a little less alone. I’m still learning, still unmasking, and still choosing compassion over shame one moment at a time.

P.S. Around here we talk unmasking autism, autistic burnout, sensory overload regulation, safe foods and picky eating, noise sensitivity tools, and what it really looks like to unmask as an adult woman.