Every now and then I get this feeling that the food I just consumed is literally sitting in my throat! It feels like the food wants to come up, but it cannot...it just SITS THERE, annoying me! My stomach feels fine, it's just that I FEEL as if the food is sitting in the back of my THROAT. It is disgusting and a nauseating feeling! I try drinking water, but unfortunately that does not help Also, this feeling causes me to lose my appetite for the entire day. I do not know what to do

Anyone know what is causing this repulsive feeling?
Any advice would be great!