I had myringotomy with tubes done 3 weeks ago and having trouble hearing from 1 ear ever since. It feels clogged or like there is pressure in it. The other day it felt like an air bubble moving through the tube then after I could hear crystal clear. (The day before I could not hear the vacuum in the next room and after the air bubble I could hear my husband putting silverware on the table from upstairs.) Any suggestions on what is happening? My ENT says everything is fine and he does not know why I cannot hear.