What Causes Nausea And Pain Centered In The Abdominal Region?

Question: I am a male, nearly 52 yrs of age with a reasonable level of fitness. For about a month now I have been experiencing nausea and pain centred about the upper middle abdominal region 2 or 3 inches below the sternum. I have not vomited but have felt close to it. I have no weight loss and am eating ok even though I often feel I do so to take my mind of the discomfort rather than hunger. My bowels have been reasonably normal for me, if anything a little slower than usual. I have bouts of IBS but not with the discomfort I am experiencing now - more lower stomach pain with more wind and urgency rather than the general feeling of un-wellness and discomfort. I have intramedullary NF3 localised around the lumbar spinal chord but my last surgery was some 14 years ago. I am monitored for a slow growing irregularity about L3 but at last scan 18 months ago it was only at around 3mm and not expected to cause any problems. I also have multiple abdominal lipomas of varying size but have had these since puberty. I also have a large hemangioma of the liver but again not of concern. I have had prior colonoscopy's and gastroscopy's the last being 5 years ago following a family history of Bowel Cancer, with some polyps removed and one adenoma. I have occasional rectal bleeding but usually associated with haemorrhoids and had one episode of Kidney stones over 10 yrs ago. I also have treated long standing clinical depression but have never been hospitalised. My main concern is as a result of losing a first cousin 12 months ago to Oesophageal Cancer following similar short term symptoms. Any advice appreciated.

Thanks for that - That's exactly what I am getting done next week. It's a little bit scary given my cousin only lasted 3 months with his cancer of the lower esophagus. Also my father died in his late 50's of bowel cancer. It is always good to get a second opinion. I have been prescribed those capsules but am still feeling a bit nauseous? I guess I need to be less nervous as it could be anything. Thanks XXXXX