Long COVID gut and nerve symptoms; somewhat better with pre/probiotics, brain fog persists
- Condition
- Long COVID
- At worst
- Not stated
- Ill before improving or writing
- 2 years
- Last post
- Oct 2026
In their words
- Condition: Long COVID
LC since April 2023.
In context ↗ - Now: Somewhat better
Still have bad LC brain fog and other symptoms but the gut specific items got better.
In context ↗ - Began after: COVID
LC since April 2023.
In context ↗
Summary
Hill 41762 developed long COVID in April 2023, with gut symptoms after most meals and neurological symptoms. Antihistamines helped the bloating moderately; ordinary supplements and probiotics did not. A dental infection in April 2025 led to metronidazole, which caused 8–10 weeks of severe nervous-system symptoms and worse brain fog but cleared the gut symptoms, credited to pre- and probiotics started afterwards. Brain fog persisted.
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What they tried
What they credit
Also tried
Their words about each treatment
- anti histamines · Helped
I responded moderately to anti histamines to prevent the severe bloating but symptoms still persisted.
In context ↗ - supplements · No change
Standard treatments didn’t do much (supplements, probiotics, etc).
In context ↗ - probiotics · Helped
Using the pre and probiotics prior to the antibiotics did not work. Only worked after I wiped out my gut bacteria basically on accident.
In context ↗ - prebiotics · Not said
Loaded up on pre biotic and probiotics in this time period after my LC doctor realize what happened with the antibiotics.
In context ↗ - metronidazole · Helped
Was put on antibiotics for a dental infection which wiped my gut bacteria. Was in hell for a few months after but a lot of my GI and other symptoms went away.
In context ↗ - diet · No change
needed to be drastically reduced/removed before anything else could have a meaningful effect (diet, supplements, probiotics)
In context ↗
Approaches: Antibiotics · Supplements
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 | After |
|---|---|---|
| April 2023 | long COVID with neurological and gut symptoms after most mealsLC since April 2023. Neuro and GI related symptoms.In context ↗ | |
| April 2025 | dental infection treated with metronidazole; 8-10 weeks of severe nervous-system symptoms and worse brain fogThis lasted in total about 8–10 weeks and was pure hell.In context ↗ | |
| summer 2025 | gut symptoms cleared after the antibiotics and pre/probioticsAt the end of the 8-10 weeks my initial GI symptoms were gone.In context ↗ | Metronidazole (Flagyl) |
| October 2026 | gut symptoms stayed better, brain fog and other symptoms remainedStill have bad LC brain fog and other symptoms but the gut specific items got better.In context ↗ |
Adverse events
- Metronidazole (Flagyl)“was prescribed metronidazole for the gum infection. Was not able to finish the course of treatment as I was having extreme nervous system issues, increased Brian fog, heart rate, etc. This lasted in total about 8–10 weeks and was pure hell.” In context ↗ Made symptoms worse
Symptoms mentioned
Their words about their symptoms
- Gut problems
GI symptoms included bloating, stomach upset, acid reflux, gastro type symptoms after most meals.
In context ↗ - Brain fog
Still have bad LC brain fog and other symptoms but the gut specific items got better.
In context ↗ - Heart symptoms & palpitations
extreme nervous system issues, increased Brian fog, heart rate, etc.
In context ↗
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