90. Why Overstimulation increases Self-Criticism
You're not too sensitive, you're not weak and you're not broken.
Your nervous system is just running software that was designed for a world that no longer exists and every text message, alarm clock, email notification, and piece of your best friend's drama is being processed the same way your ancient brain would process a bear in the woods.
This is the final episode in Janna's four-part series on self-criticism, and it pulls together the neuroscience behind why being overstimulated and being hard on yourself are not two separate problems. They are the same dysregulated state, showing up in two different ways.
By the end of this episode, you'll understand why you spiral when you're overwhelmed, why no amount of rest seems to fix the exhaustion, and exactly what your brain is trying to do when it dumps a lifetime of "you're not good enough" evidence on you all at once. You'll also have a new level of compassion for your own brain because once you understand why it's doing this, it changes everything.
Episode Highlights:
[0:38] — The series finale: This is episode four of four in Janna's deep dive on self-criticism all leading to her new program, How to Stop Being a Toxic Bitch to Yourself. If you haven't listened to episodes 87–89, she recommends going back. Each one builds a different piece of the picture: your brain, your emotions, your nervous system.
[1:34] The foundation: Why beating yourself up to get where you're going guarantees you'll feel like crap when you arrive. What got you there is what you'll experience once you're there. The inner critic doesn't clock out at the finish line.
[2:00] Overstimulation 101: Most of us are wildly overstimulated and if you're neurodivergent, that level just skyrocketed. But even if you don't identify that way, this applies. Janna's goal isn't labels it's understanding why your brain is doing what it's doing so you can work with it instead of against it.
[4:16] The factory settings: Your nervous system was built for a world with lions, poisonous plants, and physical survival. Making a mistake in that world could literally kill you or your loved ones. So your brain learned: mistakes are dangerous. Self-criticism = protection. This is not a character flaw. It is pre-installed software.
[5:43] What your brain thinks is a threat: The text message. The email. The "hey, can we talk?" from your boss. Your best friend's drama landing in your lap. Your dinner that needs to be made. The timer going off on the lasagna. Your alarm clock. Your brain processes every single one of these as a potential threat high alert, every time.
[7:10] The blood flow problem: When your nervous system goes into high readiness, blood flows to your lungs, heart, legs, and arms everything you need to run or fight. Your frontal brain, the part responsible for critical thinking, conscious reasoning, and personality, gets less blood flow. This is why in a state of overwhelm, you can't think clearly. You're not doing it wrong. You literally have less blood in the part of your brain you need most.
[8:38] The mile sprint you didn't know you ran: Every nervous system threat response even the timer going off uses roughly the same amount of mental, physical, and emotional energy as running a mile as fast as you can. If you're processing dozens of these before 9am, the exhaustion that sleep doesn't fix makes complete sense.
[10:00] Even good things trigger the response: A positive message, exciting news, an unknown notification your nervous system prepares for all of it equally, because it can't tell the difference between a bear and your best friend. The twig snapping could go either way. The body prepares, regardless.
[10:59] The good news: You can reprogram this. Creating safety in your nervous system so the email doesn't trigger the same response as the lion is a learnable, trainable skill. It's exactly what Janna teaches in her program.
[11:27] How your brain makes things mean things: From childhood, your brain learned to attach meaning to situations: "When this happens, I make it mean this about me." Then it spent years decades finding evidence to prove it was right. The meaning came first. The evidence followed.
[12:21] Conditioning the spiral: Every time a strong emotional response goes uninterrupted, your brain tags it as "significant" and makes the pathway stronger for next time. This is how social anxiety grows. This is how pre-shift anxiety in nursing develops. You didn't create it on purpose but you can uncreate it.
[13:03] What overwhelm actually means to your brain: When the nervous system goes into threat mode and clear thinking goes offline, your brain arrives at one conclusion: "I am not capable of handling this." That may not be true. It is almost certainly not true. But that's the verdict your brain just returned and now it gets to work finding evidence.
[14:12] The 17-year-old crush: Your brain reaches back to a moment from adolescence blurting something embarrassing in front of a boy as evidence that a woman in her 30s can't handle a professional situation today. It has no filter for recency or relevance. It just finds the file. Janna's interrupt: "Does that actually have anything to do with what's happening right now?"
[15:07] The avalanche: Overwhelm → "I'm not capable" → RAS finds all the evidence → decades of subconscious negative beliefs start pouring out → brain concludes you need to try harder, do more → you do more → you still don't feel like enough → "there's something wrong with me." If you've been down this spiral, you're not alone. Janna's been there. Many times.
[17:13] Why the brain can't just make you stop: Your brain cannot override your free will. It cannot take over your body. So when it wants you back in the safe zone, it uses the only tool it has it dumps thoughts and beliefs on you, one after another, to get you to retreat voluntarily. The self-criticism is the ammunition. Getting you to safety is the mission.
[18:00] The safe zone vs. where you're meant to be: "I've stepped too far out of my comfort zone." "This has never worked for me before." "I'm not good enough for this." Sound familiar? Those are your brain's ammunition not the truth. Your nervous system wants you safe. Your soul wants you growing. If you're listening to Unlocking Your More, you want the more. The work is learning to live in the tension between those two pulls without the inner critic running the whole show.
[21:05] What regulated actually looks like: This is the goal. Walking into a situation you don't want to be in a hard conversation, a high-stakes moment, a conflict and instead of going into fight/flight and saying things you regret, you're clear-headed. You can say: "I understand why my body is reacting this way. I can give it what it needs. I can calm my nervous system down and now I can think." You can ask questions that deflate the situation instead of escalating it. That's not a personality type. That's a skill.
Try This After the Episode:
Start noticing your nervous system in real time. The next time a notification, alarm, or message lands pause for two seconds before you respond.
Notice: Does your heart rate increase slightly? Do you feel a pit in your stomach? Do your shoulders tighten? Do you feel a low hum of anxiety before you've even opened the message?
That's your nervous system doing exactly what Janna described. You don't have to fix it right now just notice it. Awareness is the first step to being able to work with it instead of being run by it.
Then ask yourself: Is this actually dangerous? Or is my nervous system just really good at its (outdated) job?
Reflection Questions:
- Where in your day do you notice your nervous system responding with more intensity than the situation probably warrants?
- When you feel overwhelmed, what does your brain start telling you about yourself? What "evidence" does it reach for?
- What would it look like to walk into a hard conversation clear-headed instead of reactive? What would be different?
- If your self-criticism is your brain's way of trying to keep you safe what is it actually afraid of?
Mentioned in This Episode:
- 📌 Episodes 87–89:The first three episodes in the self-criticism series. Janna recommends listening to all four in order for the full picture.
- 🔗 How to Stop Being a Toxic Bitch to Yourself: Janna's 6-module live program launching November 5, 2026. Covers brain reprogramming, emotional processing, and nervous system safety. First time teaching it live, meaning direct access to Janna and the ability to submit your specific questions. → https://www.jannaholterman.com/stopbeingatoxicbitch
Connect with Janna:
- Instagram: https://www.instagram.com/jannaholterman/
- Website: www.jannaholterman.com
- Podcast: Unlocking Your More — available on Apple Podcasts, Spotify, Amazon Music, Substack and iHeart Radio
If this episode hit:
Share it with anyone who's ever been told they're "too sensitive," or who can't figure out why they're so exhausted even when life isn't that hard. The answer might be their nervous system running a program that was never updated for the world they're actually living in.
Leave a review on Apple Podcasts and subscribe this series has one more landing place, and you're not going to want to miss it.
Keywords: overstimulation self-criticism, why am I so hard on myself when overwhelmed, nervous system and self-criticism, fight flight freeze self-criticism, overwhelm inner critic, why do I spiral when I'm overwhelmed, brain threat response modern life, frontal cortex blood flow stress, nervous system safety, self-criticism neuroscience, inner critic overstimulation, chronic exhaustion nervous system, conditioning anxiety, pre-shift anxiety nursing, overwhelm not capable, Janna Holterman, Unlocking Your More podcast, how to stop being a toxic bitch to yourself