I have an urge to throw up almost every night now for some reason. what should i do?

Daily urge to vomit: Pregnancy & gynecologic issues are ruled out by male gender but otherwise causes of nausea below are not gender-specific. Distinguish inflammatory (ulcer, small bowel disease, gallbladder/ biliary problem, pancreatitis, uti), structural (partial obstruction, extrinsic impression against the gut/SMA), functional (gastroparesis, irritable bowel), anxiety/school refusal syndrome. See doc to be sure.