07/14 update: Fortunately the symptoms went away about 24 hours after the last time I ate the Cheerios. I ended up throwing the rest away.
It was a couple months ago. Could have been one of three possible stores. I'll never buy Cheerios again.
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食品安全报告: 美国伊利诺伊州泰勒维尔西斯普林菲尔德路沃尔玛超级中心
我也是