I have the same issue. I recommend buying a endoscope off of Amazon and filming your self when it happens vs. attempting to get a busy ENT to see it in the office.
Endoscope here: https://www.amazon.com/gp/aw/d/B01IV0TV50/ref=cm_cr_arp_mb_bdcrb_top?ie=UTF8
My history and eardrum vibrating...