Hello i've been in pain for a few days now it all started when my belly felt so full i threw up all day everything i ate n i only ate one time that d?

Examination needed: Your symptoms are nonspecific but very worrisome. Persistent abdominal discomfort like yours must be evaluated by a physician. Serious causes include appendicitis, intestinal obstruction, gastritis, pancreatitis, inflamed gall bladder, peptic ulcer,etc. Proceed to the hospital emergency room where prompt evaluation and testing will take place.