I Have A 4 Year Old Without A Fever. Has

I have a 4 year old without a fever. Has a cough and runny nose but recently she can not keep anything down. She throws up everything. She can't even keep water down. It happens like 2 minutes after the last sip. She says she is hungry. I give her a bite to eat and two bites later there goes everything. She says her tummy hurts.