Not sure what this is, maybe indigestion?
I've never had many stomach problems in the past so I'm not really sure if what I'm experiencing is indigestion or not. Sometimes after I eat my stomach aches for awhile, it feels like it's been stuffed to the breaking point. I burp up liquid and food a lot, and for some reason my nose feels like it's a bit blocked, it's like I have to work harder to breath. After a little while I slowly go back to normal. Sometimes I feel this way after eating too much at dinner (which is actually probably a fairly average sized amount of food, I actually eat even less than I used to). Sometimes it occurs when I don't even eat a lot. Sometimes I'll eat a burger (which doesn't have much to it aside from a patty) and I'll be fine, other times my stomach will hurt for hours.
I don't think it can be attributed to overeating 99% of the time, I don't eat a lot as it is. I'm not sure if GERD could possibly be causing it, I've had that for 4-5 years at this point.