Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain the symptoms of nausea and vomiting along with loose motions or diarrhea can be due to causes like viral gastroenteritis, food poisoning, parasitic infestation if you have been eating out since long,food intolerance, food allergies,electrolyte imbalance etc.. But as your wife is also experiencing the same symptoms there is a possibility that you both have probably eating any contaminated food leading to food poisoning.. -As of now you should start taking medications to control vomiting like Ondensarton or Domperidone, anti diarrhea medication like Loperaminde or furazolidone.. -Take fluid replacement therapy that is drink plenty of oral rehydration salts by dissolving in water and take more of banana, yoghurt, rice and cereals.. Take Tylenol for pain.. In case of no resolution in next 3 to 4 days consult a Gastroenterologist and get evaluated and a thorough clinical evaluation and investigations like blood tests and stool culture can help in diagnosis and treatment can be done accordingly.. You can be advised antibiotics if there is bacterial infection , Albendazole for parasites etc depending upon the cause diagnosed.. If it is due to food allergies the cause will be ruled out and eliminated from your diet.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.