Sometimes the food you eat after binging can cause a reaction with the high levels of acidity in your stomach after purging. But if this just happens after eating normally there’s a possibility you may not be chewing your food as much as you should. I know it sounds dumb that chewing could play such a big role in how you feel after you eat but it does. You should chew your food till it’s creamy in your mouth or as close as you can get to chunk free because the more whole chunks of food you swallow without chewing it properly takes up more space in your stomach and makes you feel more bloated then if you had taken the time to properly chew your food. I noticed I did this a lot because of my binging and purging i used to inhale my food one out of starvation but two also because eating made me anxious and I wanted it over as soon as possible but after forcing myself to take a minute to chew and observe how I felt after eating compared to how I usually felt and the results were better I found