Welcome to HCM.Diarrhea
and stomach pain indicates gastroenteritis
It could be due to consuming bad food.
Take care for hydration.Drink enough water,lemon water,fruit juices,vegetable soups,ors formula,buttermilk.
You can take tab ondencetrone 4 mg.to subside the vomiting.Take lactobacillus
You have to start proper antibiotic under guidance of your gynecologist because you have recently undergone for IUI.