Suggest Medication For Bloating Of Stomach,vomiting And Headache

I do not have fever, however, I started with my stomach bloating then vomiting. I now have a headache in the back of my neck down my spine. I walked today for exercise and felt sore. I now have no appetite and feel awful. YYYY@YYYY . Last week, I had a migraine which I never have had and was very nauseated and dizzy