I've been retaining a lot of ges lately... What could it be?

One thing that people overlook is the method in which you eat your meals. People who are anxious, stressed or talk a lot when eating their meals typically swallow more air with their food. If you don't notice any specific type of food that is causing this then this could very well be a factor. Try focusing on closing your mouth when you chew, don't speak when you have food in your mouth and then swallow.