My wife got it the day before and 24 hours later everything was fine again. Which almost certainly points to Noro.
The enterovirus I caught (coxsackievirus B4) which triggered my ME/CFS caused similar gastrointestinal symptoms lasting for 24 hours in many who caught it.
In many people my CVB4 viral infection would start as a gastrointestinal upset lasting for about 24 hours, in others it might begin as a a herpangina sore throat.
If you look at these acute symptoms of enterovirus on MEpedia, you see that it can produce a range of symptoms.
Norovirus has never been connected to ME/CFS in any study, and ME/CFS doctors do not test for this.