human stomach on fire. heartburn, gastritis and acid reflux, indigestion and stomach pain problems. flat cartoon

abdomen abdominal abstract ache acid anatomy bloating body burn cancer care cartoon character concept digestive disease esophageal esophagus face fire flat gastric gastritis gastroenterology gerd health heartburn human illustration indigestion inflamed inflammation irritation isolated kawaii man medical pain pancreas problem reflux stomach stomachache style symptomatic ulcer vector