I Have Had Some Weeks Of Stomach Distress (bloating, Acid,

i have had some weeks of stomach distress (bloating, acid, indigestion, gas, etc) and the CT scan my GP ordered said i showed some thickening of the fundal wall of the stomach. headed for an endoscopy. should i be too worried about cancer? where is the fundal wall? blood and h-pylori results fine, have been on acid b locker for years, now on double dose. thanks