Thanks guys. Tried the nurse people and was on hold forever and eventually gave up.

She's had some panadol and is sleeping now. Hopefully she's feeling better in the morning. I think it's from the vax bc no one else has been sick and we haven't been anywhere or seen anyone recently that she could have got sick from.

DH is going to sleep with her tonight and make sure she's ok. Fingers crossed for him he doesn't get spewed on in the middle of the night, lol.