Stress vs. Anxiety vs. Overwhelm: What Your Nervous System Is Actually Telling You
Stress. Anxiety. Overwhelm. Most people use these words interchangeably - but they're actually different experiences, driven by different nervous system responses, and they need different things from you.
If you've ever felt like you can't tell what you're actually feeling - just that everything feels like too much - this breakdown is for you. Because naming what's happening in your body is the first step to actually doing something about it.
What Is Stress?
Stress is a response to an external stressor - something outside of you putting pressure on your system. A deadline. A difficult conversation. A packed schedule. Stress is actually your nervous system doing its job - it's mobilizing you to respond to a demand.
A little stress is normal. It's even helpful. The problem starts when stress becomes chronic, unrelenting, or unprocessed - because your nervous system never gets the signal that the threat has passed.
Chronic stress can look like:
Irritability and low frustration tolerance
Headaches, jaw clenching, digestive issues
Fatigue that sleep doesn't fix
Trouble concentrating or remembering things
Getting sick more often
Crying more easily
Restlessness or feeling constantly behind
Loss of joy or pleasure in things you usually enjoy
The key with stress is completing the stress cycle - your body needs a physical signal that the threat is over. Movement, breathwork, crying, laughter, connection - these aren't luxuries. They're how your nervous system actually processes and releases stress instead of storing it.
What Is Overwhelm?
Overwhelm happens when the demands on your system - tasks, responsibilities, emotions, expectations - exceed what you feel equipped to handle. It's not just having a lot to do. It's the feeling that there is too much and not enough of you to meet it all.
For high-functioning over-givers especially, overwhelm is sneaky. You can be deeply overwhelmed while still appearing completely fine on the outside - still showing up, still producing, still taking care of everyone else. Until you can't.
Overwhelm often ends in a shutdown response - your nervous system hits its limit and goes into freeze. Suddenly you can't make decisions, can't start tasks, can't do anything at all. This isn't laziness. It's your nervous system protecting you from total collapse.
Overwhelm can look like:
Flooding - too many thoughts at once, can't prioritize
Shutting down or freezing - knowing what needs to happen but being unable to start
Avoiding whatever's causing the overwhelm
Emotional exhaustion and irritability
Difficulty making even small decisions
Feeling hopeless that it will ever get better
Physical symptoms - headaches, stomach aches, dizziness
When you're overwhelmed, the antidote isn't pushing harder. It's pausing, narrowing your focus to one thing, and giving yourself permission to let the rest wait.
What Is Anxiety?
Anxiety is different from stress and overwhelm in one important way - it's internally driven. Anxiety is your nervous system's threat detection system firing in response to perceived danger, even when there's no immediate external threat.
It's future-focused. It's "what if." It's your body in fight-or-flight even when you're sitting still.
For many of the women I work with, anxiety doesn't just look like panic attacks. It looks like being the most reliable person in every room while privately catastrophizing. It looks like lying awake replaying a conversation from three days ago. It looks like saying yes when every cell in your body wants to say no - because disappointing someone feels genuinely dangerous.
If that's you - what you're experiencing isn't just stress. It's a nervous system that learned early that it wasn't safe to slow down, make mistakes, or take up too much space.
Anxiety can look like:
Racing thoughts and rumination - replaying conversations, worst-case scenarios
Difficulty making decisions or trusting yourself
Constantly anticipating what could go wrong
Avoidance of anything that triggers the anxiety
Nausea, chest tightness, stomach aches, adrenaline surges
Feeling "on" all the time - never fully able to relax
Hypervigilance - scanning people's tones, facial expressions, energy (learn more)
The important thing to understand about anxiety is that avoidance feeds it. The more you avoid what triggers anxiety, the bigger it gets. Healing anxiety means learning to tolerate the discomfort - with support - while helping your nervous system learn that it's actually safe.
How These Three Overlap
Stress and overwhelm can trigger anxiety. Anxiety can create more overwhelm. And all three, left unaddressed over time, can lead to burnout - a state of deep emotional exhaustion where you stop caring, stop feeling, and struggle to find meaning in things that used to matter.
Burnout is much harder to recover from than any of the three individually. Which is why catching the pattern early matters.
What Your Nervous System Actually Needs
1. Name it. Start by identifying which one you're experiencing. Stress has a clear external trigger. Overwhelm feels like too much with no clear exit. Anxiety is internal, future-focused, and hard to logic your way out of. Naming it helps you respond instead of react.
2. Complete the stress cycle. Stress lives in the body - and it needs to be released through the body. Movement, breathwork, cold water, crying, laughing, shaking, time in nature. These aren't just self-care buzzwords. They're how your nervous system discharges activation and returns to safety.
3. Co-regulate. Human connection is biological medicine for a dysregulated nervous system. We are wired to regulate through safe relationships. Talking to someone you trust - or a therapist - isn't just emotionally helpful. It's physiologically regulating.
4. Stop avoiding. Avoidance is the jet fuel of anxiety and overwhelm. Every time you avoid the thing that triggers discomfort, your nervous system gets the message that it really was dangerous. The path through is learning to tolerate discomfort in small, supported doses.
5. Address the root. If you're experiencing chronic stress, anxiety, or overwhelm - especially if it's been years, especially if it shows up in your relationships, especially if you've tried managing it and nothing sticks - it may be time to look at what's underneath. Often chronic anxiety and overwhelm are rooted in early relational experiences, attachment wounds, and a nervous system that never learned it was safe to rest.
When It's More Than Just Stress
If you recognize yourself in this - if the anxiety, overwhelm, or stress feels chronic, identity-level, or deeply tied to how you show up in relationships - you're not just stressed. You're likely carrying something deeper that deserves real support.
Therapy can help you get to the root of what's driving these patterns, regulate your nervous system at a deeper level, and finally stop white-knuckling your way through your own life.
Learn more about working together here.
Not ready yet? Grab my free Nervous System Reset guide to learn more about your personal nervous system and tools to begin regulating and join my bi-weekly newsletter for real talk on anxiety, people-pleasing, and nervous system healing.
Or take the free carrying too much quiz - take the self assessment to identify which nervous system pattern runs the show.
And: Something bigger is coming. I'm launching a live 2 hr workshop experience for women who are done carrying everything for everyone - and done feeling guilty about it. Details dropping soon. Join the waitlist here to be the first to know.
About The Author
Hi! I'm Alyssa, a therapist supporting high-functioning, hyper-responsible over-givers who look like they have it together on the outside but feel anxious, chronically exhausted, and tired of being the one to support everyone else.
If you're constantly overthinking, managing other people's emotions, people-pleasing, or self-abandoning to keep the peace, my work focuses on helping you build self-trust and finally feel safe in your own needs.
My approach integrates nervous system regulation, attachment-based awareness, somatic parts work, & EMDR to help you stop over-functioning and finally feel like you can exhale.
✨ I provide online therapy, support groups, and intensives to those located in New York, New Jersey, Washington, DC, and Maryland.
Not ready for therapy yet?
✨Download my free Nervous System Workbook and subscribe to my newsletter - practical tools to understand your survival responses and begin regulating with more ease.
✨ I created The Hyper-Responsible Over-Giver Reset Workbook - a step-by-step guide to understanding why you over-give and feel responsible for everyones emotions and break the self-abandonment, fawning, and people pleasing patterns keeping you stuck.
📩 Email me at alyssakushnerlcsw@gmail.com or schedule a free 15-minute consultation to get started.
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Disclaimer
This post is meant for educational purposes only and isn’t a substitute for diagnosis, assessment or treatment of mental conditions. If you need professional help, seek it out.
