Running on Empty: How ND Energy Actually Works
There’s a very specific kind of tired that doesn’t make sense on paper. The kind where you look at your day and think, But I didn’t even do that much. You sent a few emails, had one meeting, put the washing on, maybe even cancelled something because you were “being sensible”, and yet by 4pm you feel like you’ve been dragged backwards through a hedge. Not dramatic burnout, not collapse-on-the-floor exhaustion, just that low, humming depletion that makes everything feel heavier than it should. Like you’re coming down with a bug that never turns up.
For years, I thought that meant I was weak, lazy, or just not built for “proper” business. Spoiler: it wasn’t that. It was energy debt, and I was quietly racking it up like it had no interest rate.
The burnout that didn’t look like burnout
When I finally hit proper burnout, it didn’t arrive with sirens and flashing lights or announce itself with, “Hello Hannah, you have officially broken yourself.” It crept in. First it was overwhelm that didn’t shift, then irritability, then that constant feeling that I was forgetting something. Like my brain had 47 tabs open and I couldn’t find the one making the noise. I was saying “sorry” a lot; I couldn’t focus without it feeling like lifting 50lbs with my mind. Small noises made me jump, and I’d drift off mid-conversation and realise I’d lost entire chunks of what someone was sayin
I wasn’t dramatic, I wasn’t melting down daily, I was functioning, but everything felt tight. Like I was permanently bracing. And because I was still technically working, I told myself I was fine. That’s the problem. Burnout doesn’t start with collapse; it starts with erosion — paper cuts over and over until you realise you’ve been bleeding for months.
What I haven’t said yet is that my biggest burnout wasn’t twenty-something Hannah trying to prove she could survive London life. It was much more recent, and it wasn’t just mental; it was physical. I wasn’t collapsing in tears or dramatically quitting everything; I was just never switching off. Ever.
On the days when I was stuck…brain foggy, slow, distracted…I’d tell myself I’d make it up later, and later would come in the form of ten-hour hyperfocus sessions, weekends, evenings, “just one more thing.” I was constantly playing catch-up with a version of myself I thought I should be. I didn’t allow space to just be because there was always something I should be doing.
Underneath that was shame — deep, old shame. Why can’t I just work like everyone else? Why does this feel harder for me? Why does it take so much effort to do what others seem to glide through?
But it wasn’t just about work. My “always on” wasn’t limited to clients and projects; I was the reliable one. The one people called when things went wrong, the listener, the fixer, the one who usually knew what to do. And I was always the one putting my hand up when something needed doing. Partly because I’m capable, partly because I care, and partly — if I’m being really honest — because if everyone needs you, then no one leaves you. I was used to being left, which is probably a blog for another day, or a therapist’s office, or both, but being indispensable felt safer than being optional, so I stayed available. Emotionally, mentally, practically. Even when I was already running on fumes. Being the strong one is exhausting, especially when no one realises you’re carrying it.
So I pushed, because I thought the answer was effort. Turns out the answer was pacing, and eventually something had to give. And because I had proven that my brain wasn’t capable of looking out for me, my body stepped in and said “enough already” and physically stopped me.
The lie about energy
I’ve said it before, but most business advice assumes your energy is stable. You wake up, you have X amount, so you use it wisely. And during the day, if you get a little rest, your energy increases again. For neurodivergent brains, that’s not reality.
Some days I can do a week’s worth of work whilst I’m still in my PJs. I’m on fire, with ideas flying, focus locked in, energy like a caffeinated golden retriever! Other days replying to one email feels like a university challenge, when you’re the only team member. Same life, same me, entirely different capacity.
That inconsistency used to terrify me because I mistook it for unreliability. But ND energy isn’t broken, it’s variable by design. We process more, monitor more, absorb more. Masking alone is an Olympic sport, and when you add sensory processing, decision fatigue, context switching, emotional labour, and background cognitive load, suddenly the reason you’re tired after “not much” becomes clearer. Time and energy are not the same thing; two hours on your calendar does not equal two usable hours in your brain.
The adrenaline trap
The thing that nearly finished me wasn’t laziness: it was pushing through even when all the alarm bells were ringing, but I had my fingers in my ears singing “la la la not listening”. And the frustrating part is that pushing through works — for a bit. Adrenaline is intoxicating, the sparkly new thing is delicious, urgency masquerades as capacity, and you believe you can sustain it. I could override my body for short bursts, smash through projects, hyperfocus until 2am and feel invincible. Such a natural high, ticking those things off the list and feeling like I was winning. But borrowing energy from tomorrow is fine until tomorrow arrives and the account is empty
The dangerous part was that I thought I was being responsible. I thought this was what commitment looked like, what professionalism looked like, what business grown-ups did. You got the job done, whatever that took. I could see that not everyone seemed to have to put in such a huge amount of effort, but instead of questioning my comparison, I just doubled down. A lifetime of subtle messaging that I needed to try harder, be quieter, be better, be less meant slowing down didn’t feel safe; it felt like failure.
So I kept overriding every signal until my nervous system stopped negotiating. Burnout isn’t sudden; it’s compound interest on overwhelm. I was living on an overdraft.
Why rest felt unsafe
Even when I knew I was tired, resting felt wrong. If my capacity is already unreliable, how can I afford to stop? If I pause, won’t I fall further behind.
Somewhere along the way, I’d internalised the idea that rest was a reward for finishing everything, but you never finish everything. Rest isn’t a reward; it’s maintenance, it’s preparation, it’s charging your phone before it dies instead of waiting until it’s at 1% and pretending you’ll be fine.
When you’ve lived your whole life feeling like you have to prove your capacity, rest feels like exposure. If I stop, someone might notice I’m not keeping up; if I slow down, it confirms the fear that I’m not built right. So I didn’t slow down, and that’s how burnout became physical . Not just tiredness, but inflammation, disrupted sleep, my body essentially saying, “You clearly aren’t listening to the gentle messages, so here’s a louder one.”
My burnout wasn’t dramatic; it was cumulative, and it cost me more time in recovery than pacing ever would have. Slowing down wasn’t a brave, enlightened decision; it was enforced. And if I’m honest, this slower, kinder version of me rocks. She definitely is a work in progress and needs to be dragged back in line from time to time. But now she generally just says yes to the things that bring her joy.
She doesn’t volunteer for everything, she doesn’t answer every message immediately, she doesn’t try to prove she can outwork her own nervous system. The old voice still whispers, You should be doing more. You’re falling behind. Everyone else is coping, but now my body answers back, and for once I listen.
The early warnings I ignored
Looking back, the signs were obvious — irritability, foggy thinking, snapping faster than usual, feeling like the anxiety hamster was permanently on a wheel, flinching at small noises, brownouts where you just disappear for a few minutes, and there’s no signal. But because I was still functioning, I ignored them. We’re not taught to see those as energy signals; we see them as personality flaws.
Now I have had to redefine what a better-balanced life looks like, and I’ve realised it doesn’t mean producing the same output every day. It’s responding honestly to what I can afford. Some weeks, I bounce between big output and recovery. And some days I’m on low power mode, running lights only. That isn’t failure, it’s pacing. Self-employment allows me to build around that variability rather than fight it. If I’d forced myself into a rigid mould, I would have burned out permanently.
What I know now
Energy isn’t a moral issue; it’s information. Irritability, fog, that constant feeling of being behind — those are data points.
When I ask myself, “What is my capacity feeling like today ?” instead of “What do I have to achieve?”, everything shifts. Honesty about capacity is what makes sustainability possible for me. Previously, I would bully myself into thinking I needed to keep pushing, even against my better judgment.
If you’re running on empty, it’s unlikely because you’re weak; it’s more likely you’ve been paying invisible costs for a long time. You’re not defective. You’re processing more than most people realise. The goal isn’t to squeeze more out of yourself; it’s to understand how your energy actually works and build around it.
Pushing through might buy you some time in the moment, but it can end up costing you much more, like your nervous system.