acid stomach burn gastritis icon. gerd acidity stomach reflux heartburn ache

abdomen abstract ache acid acidity anatomy baby body burn cancer concept digestive disease endoscopy esophageal esophagus fire flame food gas gastric gastritis gastro gastroesophageal gastrointestinal gerd heart heartburn human icon illustration indigestion inflamed inflammation infographic irritation juice line pain peptic pregnancy problem reflux smoke stomach symptomatic system tract tummy vector