Tomorrow morning I'm scheduled for an upper endoscopy which sends a tube down my throat to look at the inside of my throat, esophagus, stomach , and duodenum. Anyways I was diagnosed with acid reflux about 2 months ago after under going another test called an upper GI which is when you drink barium and they take a series of x rays to look for any abnormalities like tumors and such. Anyways the results came back with no abnormalities at all not just signs of acid reflux. So not even a week after the upper GI I started getting horrible pains in my stomach I was constipated and my stomach was bloated like a balloon. No matter what medications I took I could not get rid of the bloating and belching. So my Dr ordered the endoscopy to see whats going on. I am really scared that they are going to find stomach cancer or esophagus cancer even though nothing showed up on the upper GI just a little over 2 months ago.