Consult a Gastroenterologist if you are experiencing any of the following symptoms of GI disorders: Rectal bleeding, Leakage/underwear stains, Bowel movement urges that are hard to control, Diarrhea, Change in bowel habits, Pale-coloured stools, Dark urine, Heartburn (acid reflux), Abdominal pain or bloating, Excessive gas or belching, Oesophageal pain, Vomiting, Loss of appetite or weight, Lethargy.