I Didn’t Have a ‘Temper’… I Was Overwhelmed. What I Wish Everyone Knew About Meltdowns

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Question for my Autistic readers: Do you have, or have you ever had, a meltdown? If so, how would you describe them to other people? Also, what would you like people to know about them?

What IS an Autistic meltdown?

When an Autistic person has a meltdown, it is an involuntary nervous system response to compounding environmental or internal stressors.

Meltdowns are a state of extreme overwhelm that can make it hard to think, move, or communicate clearly (assuming we normally have easy access to communication). They are neurological events (like panic attacks or seizures).

Remember, meltdowns are not a choice. They are a neurological “overflow,” like a circuit breaker tripping to protect our systems from frying.

Sometimes, from the outside, it may feel like an Autistic person is having a big reaction to something small… In reality, when we finally meltdown, whatever triggers our overload may seem small to an onlooker, but it’s often just the final drop in the bucket (a bucket that has been filling for many days, or sometimes weeks or even months).

What is the difference between a meltdown and a tantrum?

An Autistic meltdown is not a tantrum (though they may look similar from the outside, the internal experience is very different).

A tantrum is a goal-oriented strategy (it’s not involuntary like a meltdown).

Tantrums are something people do consciously to get their needs met, often when simply communicating those needs isn’t working, when they don’t know how to communicate a need, or when they feel unsafe communicating their needs.

A child may have a tantrum to get something they want, and if you give them the thing they want, the tantrum will often stop immediately. Adults can also have tantrums.

An Autistic meltdown, on the other hand, is a state of involuntary distress. The involuntary part of the experience is a key difference between an Autistic meltdown and a tantrum.

If you give an Autistic person everything we ask for during a meltdown, it won’t immediately stop our meltdown (though it may help us to gradually come out of our meltdowns) because a meltdown, once started, has to run its course.

We aren’t trying to get anything or choosing to meltdown. Our brains are just temporarily overloaded.

What do meltdowns look like?

When meltdowns happen, we’re pushed into a fight-or-flight state. Our adrenaline is pumping, which can scramble our senses and make us feel like we’re in danger.

Depending on the environment we’re in when we have a meltdown, we may actually be in danger (because a meltdown can cause a loss of control and because our society stigmatizes people losing control). This can be especially true if the people around us perceive our meltdowns as ‘acts of aggression‘ or things we’re doing to be manipulative instead of viewing them with compassion as a person having a hard time.

Privilege can play a significant role in how we’re perceived in times of distress and how dangerous having a public meltdown can be for us.

Meltdowns can be different for everyone, but an outsider might observe the following:

Someone having a meltdown may feel threatened (because of being triggered into fight-or-flight).

If we go into fight mode, we may act out with aggression.

If we go into flight mode, we may run away or hide.

A person having a meltdown may cry, shout, rock intensely, pace, hand-flap, hit themselves or others, or punch, kick, or throw objects. These reactions help us release pent-up pressure.

What causes Autistic meltdowns?

Meltdowns happen when an Autistic person’s brain gets so completely overloaded that they can no longer process incoming information.

Many things can trigger an Autistic person to have a meltdown, but not having our basic needs met and mismatches between the environment we live in and expectations outsiders put onto us often add extra stress and pressure to our lives, making meltdowns more likely.

Imagine your brain is a bucket.

Every single thing in your day adds a drop of water to that bucket: bright lights, background noise, having conversations that feel meaningless and draining to you, wearing scratchy clothes, feeling hungry, misunderstood and unheard, or pushing down your natural reactions and denying your true feelings to avoid drawing unwanted or excess attention to yourself (masking).

A meltdown happens when our buckets fill and finally overflow (because they’ve become too full to hold any more). It may seem like our reactions are caused by “just a drop in the bucket,” but in reality, they occur when we reach capacity and cannot hold any more.

Meltdowns allow us to release water from the bucket, draining some of the pressure that has likely been building for a while.

Another important consideration in the bucket metaphor is that every person (Autistic or not) has a bucket that, when full, can cause them to become overwhelmed. However, because the world we live in is often in conflict with an Autistic person’s needs and neurology, our buckets are being added to more frequently than our non-Autistic peers’ buckets are.

It’s like we live in a building with a leaky roof over our bucket, while non-autistic people’s roofs aren’t leaking.

There is a constant drip into our buckets that our non-autistic peers aren’t experiencing (because the world is designed in a way that more naturally meets the needs of non-autistic people).

I am willing to bet that if non-autistic people lived in a world that met fewer of their needs, they would also be overwhelmed more often.

A few meltdown triggers include (but are in no way limited to):

Sensory stressors can trigger meltdowns.

Autistic nervous systems sometimes struggle to filter sensory information. When this happens, we are literally taking in more data than the average brain, and processing it all gets exhausting, which can lead to sensory overload (a significant meltdown trigger).

Sensory overload comes from the constant onslaught of overwhelming, unfiltered sensory information (such as lights that are too bright or flickering, sounds that are too loud, chaotic, or high-pitched, strong smells, being too hot or too cold, or being stuck in scratchy, tight, or uncomfortable clothing).

For those of us with sensory sensitivities, our nervous systems are often working overtime (often in environments that don’t consider our sensory needs), and processing all the stimuli gets exhausting and sometimes overwhelming.

When our senses become flooded and overwhelmed, we may experience sensory overload, a common meltdown trigger.

Hidden physical needs may also cause meltdowns.

Because many Autistic people have slightly different abilities to sense our internal body signals (these interoception differences can affect our ability to sense things like hunger, thirst, feeling sick, tiredness, or needing the bathroom), we might not realize we are hungry, tired, or dehydrated until things reach a critical level and our body suddenly crashes, triggering a meltdown.

Sensory/social hangovers or “post-event crashes” can be a meltdown trigger.

The day after a big event (a party or other social gathering, a work event, presentation, or a holiday), we may become run-down (due to the stress or sensory and social demands these events require of us).

Post-event crashes happen because our nervous system may have been running on adrenaline to get through something in the short term.

Once the adrenaline drops, our brain may go into a delicate, raw state where we are so sensitive that everyday things (that may not normally bother us) can trigger a meltdown.

Demand-related meltdowns.

Changes of plans, unexpected changes, or last-minute surprises can trigger Autistic meltdowns.

Being told plans have suddenly changed, such as having to take a different route home, or finding that a favorite food or comfort item is out of stock can be a jarring experience for us, triggering meltdowns.

We are not being “stubborn“.

Because we live in a chaotic and often unpredictable world (that doesn’t naturally meet many of our needs), many of us depend on predictability and routine to meet our needs and conserve energy.

Many of us operate as if we’re living in a precariously balanced house of cards, teetering on the edge of overload (because of the demands of the world around us and unmet needs).

Predictability, for many of us, is like a safety net, or something we use for energy management, and a sudden swerve rips that safety net away, sending us crashing over the edge.

Demand overloads (having too many things demanded or asked of us at once) can trigger meltdowns for some Autistic people. 

When too many things are asked of us in a short time, even if the things being asked of us are things we want to do, it can feel overwhelming.

For example: “Get dressed, brush teeth, eat breakfast, pack a bag, and leave the house.” The sheer weight of those sequential demands can trigger a panic response in an already stressed nervous system. This weight can grow exponentially when other people place external demands on us (but we can also feel overwhelmed by demands we place on ourselves).

When demand overload becomes a crushing weight, it can help to step back and focus only on one task or demand at a time or, if other people are pushing demands onto us, by advocating for our needs and turning down some of these demands, or asking for space to do one thing at a time.

Emotion-related meltdowns.

Withholding or repressing emotions, or not having our feelings understood (or ignored), can trigger meltdowns.

So can a buildup of disappointments or frustrating things during the day (or week, or month), especially if we bottle up our emotions in response to the struggles and disappointments we experience.

Emotional buildup (the “last drop in the bucket“) can trigger meltdowns.

Something that seems “small” to other people, like dropping something, an item falling out of a cabinet, or a phone or electronic device glitching, may set us off. When this happens, the meltdown likely isn’t just about the thing we dropped, the item that fell, or the glitching electronic device, but about the 50 other things that already went wrong.

The meltdown you see as a result of something that seems ‘small‘ may be in reality the final drop in our already close-to-overflowing bucket, causing our emotions to spill over.

Meltdowns can stem from masking, social demands, and expectations.

Autistic masking can lead to meltdowns. The pressure and energy that go into Autistic masking can cause an Autistic person to have a meltdown.

Socializing, especially if in environments where “masking” (moderating or tuning down our Autistic traits) is required, can be exhausting.

Masking for too long can easily fill our metaphorical buckets to the brim, tipping us over the edge into meltdown.

Too many social demands at once can activate a meltdown.

Listening to and decoding conversations, thinking of what to say back to people, working overtime to read people’s facial expressions and body language, trying to monitor people’s tone of voice, and filtering out background chatter at the same time can be exhausting (or impossible) for some Autistic people.

Many of us have smaller ‘social batteries‘ than our non-autistic peers. However, the people around us may not understand this and pressure us into social situations that are too much (or too long) for us.

If we’re stretched too thin at social events and don’t excuse ourselves in time, we may experience meltdowns.

Not being understood/being misunderstood/communication struggles that leave us feeling unheard.

When we are repeatedly misunderstood, it can take an enormous toll on us because, for many of us, communicating already requires so much extra energy.

It takes extra energy to translate our natural way of speaking into neuronormative ideals of “politeness“.

Often, we feel forced to work overtime to produce the “socially acceptable” forms of communication our non-autistic peers expect (and sometimes demand) of us. Then, when we put in all that effort and still get translated wrong, every failed interaction adds more stress to our already rapidly filling bucket.

Even worse, being misunderstood in this way often means being told our own realities are wrong, or that we don’t know what we want or what is good for us.

People frequently correct our feelings, dismiss our needs, or accuse us of meaning things we never said.

Constantly defending our lived experiences can be exhausting and invalidating. It can also leave our needs unmet (we may stay in the loud spaces, not take our much-needed breaks), and we may internalize that our needs and comfort aren’t important.

When we ignore our needs, or have a critical level of unmet needs, the meltdown can become our brain’s final emergency alarm.

When this happens, a meltdown is not about being upset over a single miscommunication. It’s the crushing buildup of trying over and over to connect or be seen and understood, and each time, feeling completely overlooked or ignored.

At its core, a meltdown from being misunderstood is a meltdown of disconnection. It’s our overloaded nervous system desperately screaming out for help, after asking nicely over and over again without being heard.

What does an Autistic meltdown feel like?

As an Autistic person, I have had many meltdowns throughout my lifetime. However, because I didn’t know I was Autistic until I was almost 30 (or even what Autism or meltdowns were, or what caused them), I didn’t understand what was happening to me for most of my life.

In the full post: how to actually stop the cycle.

If you’ve ever felt trapped in a meltdown, ashamed afterward, or unsure how to help someone you love, this is for you.

I’ll walk you through:

• How to catch the warning signs before you tip over
• What to do during a meltdown to recover faster
• How allies can show up without making it worse

This is the guide I wish I’d had sooner. Subscribe on Substack or Patreon to read the full thing.

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This post was written with the assistance of Focused Space (a sponsor of the Neurodivergent Rebel blog).

What is Focused Space?

Focused Space is an ADHD-focused, Neurodiversity affirming, goal‑setting, and online co‑working / body‑doubling platform designed to help people prioritize, stay motivated, and bust through procrastination (and it is something I believe in and personally use every day).

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Lyric Rivera is an educator and author of multiple books, including the best selling business ethics book, Workplace Neurodiversity Rising, Neurodivergent Rebel’s The Weight of Normal, a collaborator on the U.S. Version of the Autism, Identity and Me children’s workbooks and helper guide by Rebecca Duffus, and co-author with Rebecca Duffus on the upcoming Autism, Identity, and me Workbook for adults releasing on November 13, 2026 (pre-orders open NOW)!