Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. It is very likely you are having a stomach flu which can cause stomach ache and throwing up and in some cases skin rash can happen as well. It is important to have ORS (oral rehydration solutions) in frequent small amounts and have the so called BRAT diet (Banana, Rice, Apple, Toast). Try to avoid fast food or fried food, plane soups might be good but in frequent small amounts so you do not throw up. If you are having these and still you think you do not keep food or fluids but throw up everything than you might need to see your doctor so he can give you some metochlopramide against the vomiting and see the need for intravenous fluids. Meanwhile please make sure you rest and keep good hand hygiene so you are not contagious to others. Hope I have answered your query. Let me know if I can assist you further. Kind regards, Antoneta Zotaj, MD