I've had some gastric trouble over the years that I am trying to solve right now, and these symptoms
are new. Usually I get an 'attack' of upper gastric pain and vomiting, can't keep down water and eventually need to be hospitalised before dehydration makes it worse. The pain can persist through morphine, maxalon, tropisetron, pantoprazole, buscopan and stematil for hours. Usually it takes a minimum of 4 hours to bring the pain under control.