Long COVID with brain fog, much better after hyperbaric oxygen and low histamine diet
- Condition
- Long COVID
- At worst
- Not stated
- Ill before improving or writing
- Not stated
- Last post
- Apr 2026
In their words
- Condition: Long COVID
This won't be for everyone, I had a weird LC, no PEM at all.
In context ↗ - Now: Much better
HBOT cleared it up and then applying a low histamine diet took care of most of it.
In context ↗ - Began after: COVID
I had a weird LC, no PEM at all.
In context ↗ - Says they never had: Post-exertional malaise
no PEM at all
Summary
Falcon 48612 had long COVID with brain fog and depression but no post-exertional malaise, and put it down to histamine intolerance driving inflammation. Hyperbaric oxygen cleared it up, they wrote in February 2026, and a low histamine diet then took care of most of what remained. Two months later they still credited the diet with helping and called their case an unusual one.
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What they tried
What they credit
Their words about each treatment
- HBOT · Helped a lot
HBOT cleared it up
In context ↗ - Low histamine diet · Helped
Low histamine diet helped. This won't be for everyone, I had a weird LC, no PEM at all.
In context ↗
Approaches: Hyperbaric & oxygen · Diet
Their path
They say too little about how ill they were at each step to draw it on the severity scale, so the steps are listed as they describe them. Dates are when they posted.
| When | What happened | Where they were | After |
|---|---|---|---|
| — | long COVID with brain fog and depression, blamed on histamine intoleranceI had a weird LC, no PEM at all.In context ↗ | Not stated | |
| February 2026 | HBOT then a low histamine diet cleared most of the brain fog and depressionHBOT cleared it up and then applying a low histamine diet took care of most of it.In context ↗ | Not stated | Hyperbaric oxygen (HBOT) |
| April 2026 | still crediting the low histamine dietLow histamine diet helped.In context ↗ | Near normal | Low-histamine diet |
Symptoms mentioned
Their words about their symptoms
- Brain fog
I had brain fog and depression
In context ↗ - Anxiety & low mood
suppressing serotonin, causing depression
In context ↗ - Mast cell (MCAS) & allergies
For me it was histamine intolerance.
In context ↗
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