It's been a long time for me also, so I was a kid when it happened and didn't really think about it or prepare for it of course like I do now.

but what I remember is that morning I was at church and had a very sharp pain in my stomach with an abnormally sick, queasy feeling in my body where I had to sit down for about 5 minutes. It's that kind of feeling that you never have otherwise so then you know you're sick, because it's so unlike the nausea from anxiety and even from motion sickness and other things. It's far grosser and more unsettling.

It went away until that night when after I ate some junk food when I wasn't even hungry and I had horrible abdominal pain between/below my ribs for a few hours. And eventually I started v* and it happened like 6 times within a couple of hours... and I had d* and stomach issues for up to a week after that.

It was really awful but TBH I do know and admit the stomach pain only went away because of the v*, as wretched as it was. >:/

and I have a lot of bowel issues and anxiety problems that cause stomach unrest every day but I think when it's a virus or food poisoning, you will just know because it's so totally different from everything else.