What Causes Swelling In Throat And Problem While Eating?

since last few month i am feeling something is there in my throat like swelling but i have no problem in eating and swalloing but after eating of food i felt acidity also when i use to open my mouth i felt that there is something that come up in my throat i had consult to my general physician as well as ENT & gastroentrologist especialist they have given me the medicines but the problem is not yet solved what can i do suggest me ?