When The Unpredictability Almost Broke Me
There were two distinct periods in my life with Type 1 diabetes when the blood sugar rollercoaster became so relentless that I genuinely believed I was losing my mind. Not metaphorically. I mean I did not know how I was going to cope anymore, and I couldn’t see a way through.
The first was around three years after diagnosis. The instability, the unpredictability, the daily onslaught of highs and lows with no reliable pattern — it ground me down to the point where I turned to alcohol. Not occasionally. Heavily. For around four years. By the end of it, I’d almost forgotten why I’d started drinking. It had simply become the norm — the only thing that made the noise quiet down. With the help of my partner at the time, I was eventually able to stop.
The second was years later, in 2013, when my daughter was born. Instead of the joy I’d hoped to feel, I sank into depression. My blood sugars, already unstable, became more erratic than ever. And a voice in my head told me, repeatedly, that I wasn’t good enough to be a father. I started drinking again. The family unit eventually broke up in 2017. Every day felt like a disaster. The suicidal thoughts came back — but this time they felt different. They felt like an internal cry for help that I finally had to listen to before it was too late.
I’m sharing this not because I want your sympathy, but because I know there are T1Ds reading this right now who are in one of those places. And I want you to know: I came through both of them. And so can you.
Why Blood Sugar Unpredictability Is So Mentally Devastating
There is something uniquely destructive about unpredictability. Humans can adapt to almost anything — if it’s consistent. We adapt to hard jobs, difficult relationships, chronic pain. But randomness — the inability to predict or control what’s going to happen — is one of the most psychologically damaging experiences a person can have.
For T1Ds with unstable blood sugars, every day is lived under that kind of randomness. You can do everything right — count the carbs, time the insulin perfectly, avoid the known triggers — and still end up with numbers that make no sense. And when the thing you’re trying to control won’t be controlled, the brain starts looking for explanations. Usually the explanation it lands on is: it must be my fault.
That self-blame, layered on top of the physical toll of swinging blood sugars, is a recipe for serious mental health deterioration.
The Physical Reality Of The Rollercoaster
It’s worth being clear about what erratic blood sugar actually does to your body and brain, because the mental health consequences are not separate from the physical ones — they’re caused by them.
- Frequent hypos cause adrenaline surges, mood crashes, and neurological disruption that can last hours after the low resolves
- Sustained hyperglycaemia causes fatigue, brain fog, irritability, and a pervasive sense of physical and mental heaviness
- The rapid swings between the two — the actual rollercoaster — keep the nervous system in a state of chronic stress, never able to fully settle
- Chronic stress raises cortisol, which raises blood sugar, which causes more instability. The loop feeds itself.
This is not a willpower problem. This is a physiological cascade with real psychological consequences.
What Most People Get Wrong
People assume that blood sugar instability is purely a management problem — that if you just got the doses right, worked harder, were more disciplined, it would stabilise. Sometimes better management does help. But often the instability has roots that go deeper than insulin ratios: stress, sleep deprivation, hormonal changes, alcohol, grief, relationship breakdown. Life, in other words.
And life doesn’t pause while you try to get your numbers in range.
The other misconception is that the mental health fallout is a side effect of the bad management, rather than a consequence of the condition itself. It isn’t. The rollercoaster causes genuine psychological harm. That harm deserves to be treated directly — not just managed by chasing better numbers.
The Unseen Battle of Blood Sugar Chaos
Roller coaster blood sugar levels slam you into a cycle of highs and lows that feel endless. One minute you’re shaky and panicked, the next you’re foggy and sluggish. It feels like your body is betraying you, and the emotional weight can crush your spirit. The unpredictability breeds fear, frustration, and exhaustion.
Why Roller Coaster Blood Sugar Levels Feel So Brutal
The unpredictability is the hardest part. You eat carefully, you check your numbers, you think you have control. Then suddenly, your body decides otherwise. It’s a storm without warning sirens, leaving you stranded. The frustration stacks up until even small dips or spikes feel catastrophic.
The Silent Emotional Toll
Beyond the numbers, the emotional burden gnaws at your confidence. Fear of going too high or too low takes over your thoughts. You start questioning every decision: every bite of food, every walk, every night’s sleep. This constant vigilance eats away at your peace of mind.
For more on how your identity isn’t defined by numbers, read You Are Not a Glucose Graph .
Fear: The Constant Shadow Behind the Numbers
Fear becomes a daily companion. Fear of collapse in public. Fear of waking up in the middle of the night drenched in sweat. Fear of the damage your body might endure over time. Fear clings to you like static electricity, buzzing in your mind with every test strip.
Anguish: When Despair Joins the Ride
Anguish surfaces when the numbers defy logic. You followed the rules, but the numbers sneer back. That hopeless feeling seeps in, whispering that nothing you do will matter. It’s an emotional spiral that drags you down even deeper than the blood sugar crash itself.
Why Mindfulness Is Not Fluff but Survival
Mindfulness is not about sitting on a mountaintop humming. It’s about survival. It’s about creating space between your spiraling thoughts and your reality. Mindfulness doesn’t erase the blood sugar swings, but it arms you with the clarity to face them without falling apart.
Eight Vital Ways Mindfulness Helps in the Worst Moments
1. Mindful Breathing Anchors You in the Storm
When numbers spike or crash, your mind races. Breathing deeply slows down the panic. It steadies the racing heartbeat and brings your body back into balance.
2. Meditation Brings Perspective to Chaos
Meditation clears the fog of fear. A short guided meditation can shift your perspective, reminding you that one number doesn’t define your entire day—or your worth.
3. Awareness Stops the Spiral of Self-Blame
Mindfulness teaches awareness without judgment. Instead of berating yourself for a bad reading, you notice it, accept it, and move forward without the mental punishment.
4. Staying Present Keeps Anxiety from Snowballing
Blood sugar spikes drag your mind into the future—“What if I collapse later?” Staying present stops that spiral. It keeps you grounded in now, not what could happen later.
5. Body Scans Reconnect You with Signals You Miss
A body scan meditation helps you notice subtle signals before they explode into full-blown chaos. It’s like tuning in to your body’s quiet whispers before they turn into screams.
6. Compassion Softens the Inner Critic
Roller coaster blood sugar levels often trigger brutal self-criticism. Practicing self-compassion through mindfulness quiets that critic and replaces it with gentleness.
7. Gratitude Practices Shift Focus from Fear
Mindfulness paired with gratitude pulls your attention away from numbers and toward small wins—like catching a low before it spirals or having energy to take a walk.
8. Mindful Reflection Builds Resilience for Next Time
Reflecting mindfully on what happened today equips you for tomorrow. It builds resilience instead of leaving you stuck in dread.
WHEN YOU NEED MORE THAN SELF-HELP
When You Need More Than Self Help
If the mental health impact of blood sugar instability has reached the point where you’re using alcohol or other substances to cope, having thoughts of suicide, or simply feeling like you can’t go on — please reach out for help today. Your GP, your diabetes team, Samaritans (116 123), or a mental health professional who understands chronic illness.
This is not a sign of failure, instead it’s a sign that you have been carrying too much for too long without adequate support. That support is available.
The Rollercoaster Can Slow Down
I won’t tell you it stops completely. T1D is T1D. But the relationship you have with the unpredictability — the emotional charge it carries, the power it has over your state of mind — can change fundamentally.
I’ve been at the bottom of both of those dark periods I described at the start of this post. I came through them. My relationship with my diabetes, and with myself, is fundamentally different now. Not because the diabetes got easier — but because I got different.
If you want help making that shift, I’m here.
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For more emotional strategies, check out the Diabetes Burnout Symptoms guide. And my burnout questionnaire here, because it’s so much better that we nip it in the bud now before the sh*t really does hit the fan 🙂
A Note of Care and Clarity
I am not a doctor. Nothing here replaces professional medical guidance. Mindfulness is an emotional lifeline, but always consult with your healthcare team for medical advice.
Final Words: Choosing Presence Over Panic
The roller coaster will keep moving. But you don’t have to be its captive. With mindfulness, you choose presence over panic, compassion over criticism, and resilience over despair.
Speak soon,
Pete 🙂
Your Diabetes Mindset Coach
