What can cause constant small burps and constipation and belly/groin noises ?

Dyspepsia : Constipation itself can lead to a "back up" of the digestive system and cause burps. Certain medications and/or foods can make this worse. Anything that relaxes the bowels can slow transit and loosen the sphincter (valve that keeps the esophagus closed) causing both constipation and burping. Keep a food diary also looking at all foods but esp caffeine, carbonation, dairy, and processed carbs.