my girlfriend is 21 years old.before,sometime she say her stomach pain because of she doesn't take care her meal.eat 1 times or 2times per day. things more serious on Monday,she got a serious vomit and stomach pain till now..I couldnt do anything for her. I asked before to went to see a doctor. but she refuge to do so. what should I do? is this is serious? we got sleep together. but her period is come~ what should I do? should I give her something to eat? if so,what kind food?