Hi Simone, Welcome to HealthcareMagic Forum.
May be you guys are suffering from Food Poisoning
which has caused Gastroenteritis
. Did you guys had food outside any time recenty? You may need antibiotics, Anti Diarrheals and Anti emetics. Kindly get your self examined by a Physician at the earliest. Drink plenty of fluids and avoid eating from outside and eat Home cooked fresh food.
Wish you and Your family Good Health. Take Care.