What if someone has been throwing up and loose stools when they wake and been like that for about a week?

Gastroenteritis: 2 common causes are a viral gastrointestinal infection and food poisoning. Both conditions usually resolve within a week. Treatment is resting, good room temperature fluid intake, a light diet such as broth, saltine crackers progressing to soft solid foods, flat gingerale to settle nausea and kaopectate or Imodium for severe diarrhea control. See your MD if not improving.