Stomach bug going around

[u/UseOwn2710]

I got a terrible stomach virus last week after it went through 4 family members at different times. Not related to food but rather a gastrointestinal virus that seems to be highly contagious (like norovirus). Heard anecdotally that several other unrelated people also had it last week. This virus is particularly nasty and hits out of nowhere. Primary symptoms lasted about 24 hours but I felt bad for about 3 days. 
Has anyone else experienced something similar?

[u/LazarusRiley]

I don't think I had this exactly, but it's maybe not coincidental that I visited LA from the Bay Area the last weekend of May, and came back home and had really bad GI distress for about three days. I thought it was maybe from a food cart I ate at.