Difficulty swallowing food. Swallowing?

I am having difficulty swallowing food like my food is sticking in throat and burps are also incomplete...Went to ENT he said it is GERD and I still have swollen tonsils , although my main problem is feeling of food sticking in throat...My endoscopy is also done that shown ESOPHAGITIS GRADE A ,LAX LES...! Now gastro is giving meds for that but my Swallowing difficulty is still there...All blood work came normal but I can't understand what happened suddenly that is causing difficulty swallowing? I was having tonsils two months ago that time I took Azithromycin, Cefixime, Becosules ... AFTER FIVE DAYS OF MEDS I SUDDENLY DEVELOPED FEELING OF FOOD STICKING IN THROAT! ! AFTER ALL TESTS WHY I AM STILL IN TROUBLE! ENT already checked me said nothing is there just GERD! Kindly let me know what is wrong with my Swallowing?