I have never seen so much vomit come out of a 1 year old untill tonight. 2 times. Really hope she…

I have never seen so much vomit come out of a 1 year old untill tonight. 2 times. Really hope she was just over fed by the sitter. But 3 nights ago my 3 year old threw up and still has a bit of diarrhea. We thought it was just from his post nasal drip because my husband gets it bad like that to where it makes him puke and stuff.they both have allergies. No fevers or anything for anyone, so I wonder if it's something going around, like a bit of a stomach bug. She's sleeping now but everyone pray for me she sleeps through the night and does not wake and puke all over the pack n play. I'm running out of places for babies to sleep. She already messed up the other pack n play and now it's drying