How Chronic Kidney Disease Shapes My Energy, Time and Capacity

As I work through my 6 Months to Change My Life project, I’ve realised something important: many of the systems I’m experimenting with don’t fully make sense without context.

My energy, focus, and ability to be consistent are shaped by chronic illness.

This post exists so I don’t have to keep explaining that from scratch — and so readers can understand the reality I’m working within as I set goals, test routines, and try to build a life that’s more sustainable.

Chronic illness isn’t just about being “unwell”

When people hear “chronic illness,” they often picture being sick all the time, or having bad days and good days.

What’s harder to see is that chronic illness affects:

Energy availability
Recovery time
Cognitive capacity
Physical comfort
Predictability

It changes how time works.

For me, kidney failure and dialysis mean my body runs on a very different rhythm to the one most productivity advice assumes.

"Chronic illness doesn’t just reduce energy — it makes energy unpredictable".

Dialysis and fluctuating capacity

I have kidney failure and undergo dialysis three times a week.

Dialysis is not just something that happens during treatment hours. It affects:

How I feel before a session
How my body responds afterward
How much energy I have for the rest of the day — and sometimes the next

Some days I can function reasonably well. Other days I’m dealing with:

Extreme fatigue
Brain fog
Physical discomfort and restlessness
Sensory overload
Difficulty concentrating or initiating tasks

There is no reliable pattern that says, “On these days, you’ll feel like this.”

That unpredictability is one of the biggest challenges.

Fatigue is not the same as being tired

Chronic fatigue isn’t solved by an early night or better motivation.

t’s the kind of fatigue that:

Makes simple tasks feel disproportionately hard
Slows thinking and reaction time
Limits how long I can focus before needing to stop
Doesn’t always improve with rest

This matters because most routines are built on the assumption that energy renews overnight.

Mine doesn’t always.

"Rest doesn’t guarantee recovery — sometimes it just prevents further damage".

Why time-based planning breaks down

Traditional planning relies on fixed assumptions:

You’ll have roughly the same capacity each day
You can “push through” low motivation
Missed tasks can be caught up later

When energy is unpredictable, those assumptions collapse.

If I assign tasks to specific days or times, I’m gambling on energy I don’t control. When that energy isn’t there, the plan fails — not because I didn’t try, but because my body didn’t cooperate.

Over time, this creates:

Constant re-planning
A sense of failure
Pressure to overdo it on good days
Crashes that undo any progress

Capacity matters more than motivation

One of the biggest shifts I’ve had to make is separating desire from capacity.

often want to do things.
I don’t always have the capacity to do them.

That capacity can change:

Within the same day
From one dialysis session to the next
Based on sleep, symptoms, appointments, or mental load

Recognising this isn’t giving up — it’s being accurate.

"You can be motivated and still not have capacity".

Why I’m planning around energy instead of time

Because of all this, I’m moving away from rigid schedules and towards energy-based systems.

Instead of asking:

“What should I do today?”

I’m learning to ask:

“What energy do I have right now — and what makes sense at this level?”

This allows me to:

Protect low-energy days from becoming worse
Use medium energy for maintenance
Use high energy to prepare for future low energy

It’s not about doing less forever.
It’s about doing what’s sustainable without burning myself out.

This context isn’t the whole story — but it matters

This blog isn’t about illness alone.

It’s about change, experimentation, learning, and building a life that works within reality rather than fighting it.

But ignoring the role chronic illness plays would make the rest of the story incomplete — and sometimes misleading.

So this post exists as context.

From here on, when I talk about routines, goals, or systems, this is the framework I’m working within.