Found a lump near tonsil. Not answered.

I have chronic sore throat and visited my ent and physician several times in the past year.Did fiber optic laryngoscopy once and doctor said all okay. Doctor usually dismiss saying that it's allergy .In Jan my IGE was 150iu/ml.i have acidity issues also.2 weeks back went to my ent and he said all looks okay and I don't have any clinical symptoms. When I came back home I found this lump in the back of throat.though I don't have any other symptoms,I am not sure is it normal.kindly sugggest what should I do??I did a total of 4 visit in last year to ent 3 to physician and and they dnt recommend any further testing.why I am not getting a proper line of treatment,I have visited a good well know ent surgeon in my area but my questions are not answered.