so recently right after I eat I sometimes get nauseous (most likely in public) and I feel like I'm going I throw up and I think about it a lot and I get scared that I won't have any where to throw up like if the bathroom is full or there's no bathroom around me . I freak out and start gagging. this happens almost everytime I eat in public and a couple times at home it's nerve racking. I get nervous before I even eat or when I know I'll be eating at a restaurant and then I'll definitely throw up. I don't know what's wrong with me. also before I started throwing up I used to gag at smells after I ate and when I got excited idk if this has to do with anything but yea ?