Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain the symptoms of vomiting sensation with continuous feeling to evacuate the bowels along with stomach discomfort can be due to Viral Gastroenteritis, Parasitic infestation, electrolyte imbalances, side effects of medications if you take any, food intolerance etc.. I would suggest you to consult a Gastroenterologist and get evaluated and he can advise you blood tests, stool culture, colonoscopy etc to confirm the cause and treatment can be done accordingly.. You can be advised treatment according to the cause.. You can be given Ondensarton to relieve vomiting sensation and can be given Albendazole of there is parasitic infection.. Taking more of probiotics like Yoghurt in diet can help.. Take home cooked foods and make by properly washing the vegetables and also wash your hands before cooking and eating.. Take plenty of fluids.. Hope this information helps.. Regards..