Last night I woke up around 3am with awful diarrhea and vomiting. I was up every half hour or so doing one or the other.
The diarrhea continued this morning but has improved. The vomiting started back up though - I puked 3 times in an hour and had AWFUL heartburn. It felt like I was having a heart attack. Haven't done either for about 2 hours. Ate rice and apple sauce and feel a ton better. Still sick, but not miserable.

My question - when is it safe to say it's likely something I ate vs a contagious bug? I definitely ate a few thing yesterday that neither LO or DH had. They both are fine so far. But I've stayed away from LO all day today just in case.
For those with experience, if DH and LO are both still fine tomorrow AM is it ok to assume it was food related and just be really really careful with him? If not I need to ask my MIL to come in or my husband take the day off.

ETA: my son did start preschool this week a couple mornings a week. So I still wonder if I got it from there - but he seems fine.