Hi, Welcome to HCM. I appreciate the fact that you are really concerned about your daughter. You can definitely help her by firstly giving her the mental strength to believe and accept that this is temporary and she need not fear. Secondly, you have taken to the doctor and she is on medication for the same which is the best thing you have done. Thirdly, I would want to emphasise on you checking on her diet. There is a possibility of food poisoning, infection in the stomach etc beacuse you have mentioned that the pain began only after she ate outside food. Symptoms of food poisoning include vomiting, nausea, stomach pain, and even slight fever. With regards to diet, you need to ensure she drinks a lot of fluids in the form of plain wated, juices, soups etc to make up for the lost fluids through vomiting. She should be well hydrated. She can consume bland foods that will not irritate her digestive system such as rice, milk, banana, soft breads etc. Give some nuts for protein intake. Ensure you do not give heavy foods because you need to give time for the stomach to get back to normal. Avoid spicy, sweet, sour, bitter foods. Try to keep the diet very simple and bland so that the virus/bacteria does not have suitable conditions to grow. Diet along with medication shall definitely help her tackle the situation. If condition persists beyond week agaain, consult a doctor for more tests. Good luck!!!