Raymond
What Ginny said...right away. It's pretty common to have an upset stomach. It's also very effectively dealt with by a variety of medications. Call the Doctor right away. Do you have a gastric tube? You probably won't be eating much solid food for a while, but make sure that you keep your liquids up. Dehydration happens quickly, and you'll wind up back in hospital if you aren't careful. Let us know how you're making out
Wayne