Please reassure me!

[EvilCookie]

Haven't posted here in a while, but I'm freaking out a bit.

Me and my son had a busy day today and had to eat lunch out somewhere. I decided to try a Sweet Tomatoes restaurant that was on our way,
which is like a buffet with salads, soups, pastas, and desserts. It sounded good and seemed like a good choice for my picky three year old.
I'm normally leery of buffets, but this one seemed clean enough, and we went at on off time, 3 pm, when there was almost no one there, of course
washed hands and took all the precautions. Then, already after we ate, just out of curiousity I looked the place up on Yelp - it's a chain, and while the reviews
for other locations were good, the ones for this one specifically weren't great - most just said it's got less variety and the salads aren't as fresh, but
quite a few also said it's very messy and/or dishes were dirty (wasn't the case from what I saw, but we weren't in at a busy time), and then one review was the one that gave me the panic attack - a guy saying he ate there six months ago, and came down with a terrible D and high fever that same night that lasted a few days.
Of course, the second I read it, my stomach immediately flipped and felt off - never mind that I have IBS and it feels 'off' 90% of the time anyway. Right now I feel kinda bloated and uncomfortable, and panicking, regretting eating there in the first place. I'm mainly worried about the salad bar and the prepared salads, although I only had a few bites anyway. I know it's only one review out of 88, and that 99% of the people who go there probably don't write reviews in the first place (and it gets very busy at lunch and dinner), but I still can't relax. We have so many plans in the next few days, including tickets to a show and all the Halloween stuff, I'm terrified of getting sick. Please tell me I'm just crazy?!