Severe brain fog for 6+ years (comes and goes randomly), diagnosed with SIBO but treatment didn’t fix it — I feel lost and need direction
I’m a 23-year-old male from São Paulo, Brazil.
Honestly… I feel completely lost right now.
I had a normal life until around 2018/2019.
That’s when everything started to fall apart.
After finishing high school, I started college — and that’s when I realized something was very wrong with my brain.
This is not just “brain fog.”
It feels like my brain suddenly slowed down drastically, and I entered a constant state of confusion.
Like everything I’ve lived, everything I’ve learned… just disappeared.
This feeling is 24/7.
- I forget words
- I struggle to understand simple texts
- I feel like I’m using only 30–35% of my capacity
- Conversations became difficult
- Even basic tasks (like adjusting the shower temperature) feel confusing
(And before anyone asks: I did not experience any trauma.)
Because of this, I had to drop out of college.
After that, I started working in accounting and, even with all of this, I managed to become a general manager at a firm that handles around 500 companies.
So… I know I’m capable.
The strangest part:
There are periods (a few days, sometimes up to 1–2 weeks max) where I suddenly go back to normal.
- My brain works perfectly
- My memory comes back
- My intelligence returns
It’s like nothing ever happened.
And then… everything crashes again.
And I stay like this for months.
I’ve never been able to understand what causes these “good phases.”
Other symptoms:
- Constant reflux (even with healthy foods)
- Burping food hours after eating
- Burning sensation about 3 cm above my belly button
- Strange feeling in my knees (not pain, but feels inflamed or “off”)
- Chest bone pain + cracking when stretching
On top of that:
I have tremors and muscle weakness.
If I try to hold a small object between my thumb and index finger, my thumb starts shaking.
The same happens with other fingers, especially during effort (like a plank exercise).
I also experience:
- Muscle spasms throughout my body
- Occasional numbness
I’ve had more than 5 panic attacks that sent me to the ER, where I needed sedative medication.
During these episodes:
- My senses become extremely heightened
- Even small noises make me anxious
- My body goes into a constant “threat mode”
Impact on my life:
I’ve always been a strong and determined person.
But after years like this… it started to break me.
By the end of 2024, I became more depressed from not being able to get better.
In 2025, I hit rock bottom:
- Deep depression
- Days stuck in bed
- No energy
- No motivation
And even then… sometimes I still go back to normal for short periods.
What I’ve tried so far:
- Eliminated inflammatory foods (gluten, dairy, sugar, alcohol, etc.)
- Seen psychiatrists and tried 4 antidepressants (currently on fluoxetine again, started 3 days ago)
- Seen a neurologist (MRI was normal)
- Seen multiple doctors — tests mostly normal
- Tried a huge number of supplements… honestly, I can’t even list them all. Probably over 100 at this point 😂
- Spent a lot of money and even went into debt trying to fix this (still paying it off)
The only clue so far:
A gastroenterologist diagnosed me with SIBO and IMO.
I followed the full treatment… and it didn’t fix anything.
My question:
Could all of this be coming from my gut?
Or am I missing something bigger (nervous system, vagus nerve, etc.)?
I’m not going to give up.
But right now, I really need direction.
If anyone has gone through something similar or has any insight… I would truly appreciate it.
(Important detail: all of these symptoms started at the same time, and I’ve been like this for about 6 years.)
Additional details:
- Age: 23
- Gender: Male
- Height: 180 cm (5’11”)
- Weight: 75 kg (165 lbs)
- Medications: Fluoxetine (started 3 days ago)
- Smoking: Yes (currently smoking cigarettes)
- Medical history: SIBO and IMO diagnosed
- Duration: ~6 years
- Location: Cognitive (brain), digestive system, muscles, chest