What Causes Heavy Feeling In The Throat?

Hello Doctor,
After taking meals; I feels that my food is still in my food pipe; and i remains there only; i consulted the doctor and he given me "NexProIT" for this and gastric problem. i have take the medicine but no benefits; now the conditions is more worst; my whole throat remains heavy all the time. i can not swallow small amount of food or light weight food, it remains in my throat; i can feel it ;...