It’s not permanent. Just take your antibiotics and when you don’t need them your gut will go back to normal.
It caused a gut condition that involved nausea, insomnia, and made it difficult to concentrate.
It was also causing me psychologically to feel as if the rug had been pulled out from under me - I didn't know what I was doing anymore.
That's why you're told to take yogurt/other fermented foods after taking antibiotics, to provide a reproductive environment for them to grow.
However it's still a risk you could kill off a whole species and lose their function, so probably best not to take antibiotics unless you really have to.
It's an easy analysis process though, you try to recover for a couple days, if you cannot and no virus is detected, you take antibiotics.
If it's a bacterial infection and it's spreading you have to take antibiotics, otherwise you die and all of your microbes die with you.
There's only a few total comments in this thread overall, I counted 2 anecdotes, not exactly a scientific consensus.
And people are more likely to comment when something goes bad than when something goes good *checks product feedback*