G.,
Ear issues are a pretty common anxiety complaint. Here is a page from the Anxiety Centre's site with a list of sx. Using your coping skills to reduce your overall stress of course should help. If however this persists, seeing your doctor to rule out congestion/wax impaction/infection would be a good step.
S.C.
Hearing & Ear Anxiety Symptoms (symptoms of anxiety involving the ears and hearing)
Feel like there is something stuck in your ear, that your ear canal it plugged or blocked, that there is a pebble in your ear that you can't get out. Having a humming, droning, rumbling, throbbing, vibrating-like, hissing, fizzing, or other types of sounds in your head. Low rumbling sounds Reduced hearing, frequent or intermittent reduced hearing or deafness in one or both ears. Ringing in the ears. Pulsing in the ears, throbbing sound in the ear(s)Tinnitus and Anxiety