Food poisoning or gastroenteritis?

What is the difference between symptoms of food poisoning and gastroenteritis? Me I woke up feeling sick this morning and managed to hold out until "awakening time, I got up yesterday's dinner tonight was an hour ago I still feel that my stomach churned and I know I will be sick again or I diarreah. I want to know if I was contagious or not, because I have a daughter and toddlers do not want to receive, but not equally distributed around the disease, family, if I asked them to keep their children.

Symptoms of poisoning Food usually appear within six hours after the meal Acute abdominal cramps, vomiting and diarrhea symptoms. We have confronted a case of poisoning food during this summer vacation with my daughter. The emergency doctor told us about six hours after eating their appearance. He said the norm.

Ellie dining out