I was lying down and sat up a little, sort of little doing a situp and noticed a bulge in the center of my abdomen that starts just below the rib cage and goes down to about 2 inches above the belly button. The bulge is about 2 inches wide. I have had bad indigestion for a long time and the doctor has me on a precription for that. Also, when I eat lately I seem to, if I don't sit down and rest for about 15 mins, start gaging and feeling like I am going to throw up. But that goes away if I sit and rest. On occassion I have a little burning sensation in my stomach area but it is very light. The bulge is not sore or pulsing at all. I can't even see it or feel it, if I am standing or just sitting. I have to do like a situp to even see it. What could this be?