What is wrong with me?

well it all started friday when i threw up like 10 times in 2 hours all i could hold down was ritz crackers i couldn't even take pepto i threw it up to saturday we were out in town went to the cemetery looking at head stones i could eat fine until supper came and i couldn't eat it sunday i ate leftovers and a bologna sandwich my stomach hurts i am losing weight about 6 pounds since friday