I've been feeling like I have a belch "stuck" in my throat... even when I drink soda, I feel like I can't get a satisfying belch, just small belches. I have this greasey feeling in my chest like there is something stuck there, like food, or air or something.
It started the other day when I was drinking something, and while I was drinking, I felt this sharp feeling in my chest like I swallowed something, and like I needed to belch it out. A little later I was eating and after the meal I felt a small urge to belch and regurgitated some kind of sticky substance. I hope it's nothing serious, any help would be appreciated